Electromagnetic interference matrix rapid calculation method and system based on minimum frequency interval, electronic equipment and storage medium

Abstract

The invention provides an electromagnetic interference matrix rapid calculation method and system based on a minimum frequency interval, electronic equipment and a storage medium. The method comprises the following steps: selecting a minimum frequency point from frequency points of first equipment as a first frequency point; selecting the frequency point with the minimum absolute value of the difference with the minimum frequency point from the frequency points of the second equipment as a second frequency point; when the first frequency point is the transmitting / receiving frequency and the second frequency point is the receiving / transmitting frequency, calculating a first electromagnetic interference result and a second electromagnetic interference result; if the two are both electromagnetic interference-free, the interference matrix element value is 0; otherwise, 1; traversing a frequency point set of the second equipment and the first frequency point to form a first combination set; and calculating interference matrix element values of all combinations in the first combination set according to the size relationship among the interference matrix element values, the first frequency point and the second frequency point. According to the scheme provided by the invention, the calculation times of the whole electromagnetic interference matrix can be reduced by finding the minimum frequency interval, so that the calculation efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electromagnetic interference analysis and calculation, and in particular relates to a method, system, electronic equipment and storage medium for rapid calculation of an electromagnetic interference matrix based on a minimum frequency interval. Background Art

[0002] The electromagnetic interference matrix characterizes the interference state of each frequency combination of two frequency-using devices. Constructing the electromagnetic interference matrix requires calculating the interference state of each frequency combination.

[0003] Therefore, how to provide a method, system, electronic device and storage medium for quickly calculating an electromagnetic interference matrix based on a minimum frequency interval has become a technical problem that urgently needs to be solved in this field. Summary of the invention

[0004] The purpose of the present invention is to provide a method, system, electronic device and storage medium for quickly calculating an electromagnetic interference matrix based on a minimum frequency interval.

[0005] According to a first aspect of the present invention, there is provided a method for fast calculation of an electromagnetic interference matrix based on minimum frequency interval, comprising:

[0006] Step S1, selecting the minimum frequency point from the frequency points of the first device as the first frequency point; selecting the frequency point with the smallest absolute value of difference from the minimum frequency point from the frequency points of the second device as the second frequency point;

[0007] Step S2, when the first frequency point is used as the transmitting / receiving frequency and the second frequency point is used as the receiving / transmitting frequency, calculating whether there is electromagnetic interference between the first frequency point and the second frequency point, and obtaining a first electromagnetic interference result;

[0008] Step S3, when the first frequency point is used as the receiving frequency and the second frequency point is used as the transmitting frequency, calculating whether there is electromagnetic interference between the first frequency point and the second frequency point, and obtaining a second electromagnetic interference result;

[0009] Step S4: If both the first electromagnetic interference result and the second electromagnetic interference result are no electromagnetic interference, the interference matrix element value is 0; otherwise, the interference matrix element value is 1;

[0010] Step S5, traversing the frequency point sets of the second devices sorted from small to large and the first frequency point to form a first combination set; if the interference matrix element value is 0, according to the size relationship between the first frequency point and the second frequency point, calculate the interference matrix element values ​​of all combinations in the first combination set; if the interference matrix element value is 1, according to the size relationship between the first frequency point and the second frequency point, calculate the interference matrix element values ​​of all combinations in the first combination set;

[0011] Step S6, traverse the frequency point set of the first device sorted from small to large and all the frequency points of the second device to form a second combination set; repeat steps S1 to S5 to calculate the interference matrix element values ​​of all combinations in the second combination set.

[0012] According to the method of the first aspect of the present invention, in step S5, if the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point includes:

[0013] When the second frequency point=the first frequency point, the interference matrix element values ​​of all combinations of the frequency points of the second device and the first frequency point are all zero.

[0014] According to the method of the first aspect of the present invention, in step S5, if the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0015] When the second frequency point>the first frequency point, the interference matrix element values ​​of the second device that are a combination of all frequency points greater than the second frequency point and the first frequency point are all 0.

[0016] According to the method of the first aspect of the present invention, in step S5, if the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0017] When the second frequency point is less than the first frequency point, the interference matrix element values ​​of the combination of all frequency points of the second device that are less than the second frequency point and the first frequency point are all 0.

[0018] According to the method of the first aspect of the present invention, in step S5, if the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point includes:

[0019] When the second frequency point = the first frequency point, on the side greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

[0020] According to the method of the first aspect of the present invention, in step S5, if the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0021] When the second frequency point>the first frequency point, on the side of the frequency point greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side of the frequency point less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

[0022] According to the method of the first aspect of the present invention, in step S5, if the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0023] When the second frequency point < the first frequency point, on the side of the frequency point greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with an interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side of the frequency point less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the previous frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the previous frequency point, until the corresponding frequency point with an interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

[0024] The second aspect of the present invention discloses a rapid calculation system for an electromagnetic interference matrix based on a minimum frequency interval; the system comprises:

[0025] The first processing module is configured to select a minimum frequency point from the frequency points of the first device as the first frequency point; and select a frequency point with the smallest absolute value of difference from the minimum frequency point from the frequency points of the second device as the second frequency point;

[0026] The second processing module is configured to calculate whether there is electromagnetic interference between the first frequency point and the second frequency point when the first frequency point is used as the transmitting / receiving frequency and the second frequency point is used as the receiving / transmitting frequency, so as to obtain a first electromagnetic interference result;

[0027] The third processing module is configured to calculate whether there is electromagnetic interference between the first frequency point and the second frequency point when the first frequency point is the receiving frequency and the second frequency point is the transmitting frequency, so as to obtain a second electromagnetic interference result;

[0028] A fourth processing module is configured to: if both the first electromagnetic interference result and the second electromagnetic interference result are no electromagnetic interference, the interference matrix element value is 0; otherwise, the interference matrix element value is 1;

[0029] The fifth processing module is configured to traverse the frequency point set of the second device sorted from small to large and the first frequency point to form a first combination set; if the interference matrix element value is 0, calculate the interference matrix element values ​​of all combinations in the first combination set according to the size relationship between the first frequency point and the second frequency point; if the interference matrix element value is 1, calculate the interference matrix element values ​​of all combinations in the first combination set according to the size relationship between the first frequency point and the second frequency point;

[0030] The sixth processing module is configured to traverse the frequency point set of the first device and all the frequency points of the second device sorted from small to large to form a second combination set; repeat the first processing module to the fifth processing module to calculate the interference matrix element values ​​of all combinations in the second combination set.

[0031] The third aspect of the present invention discloses an electronic device. The electronic device includes a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps in any one of the methods for quickly calculating an electromagnetic interference matrix based on minimum frequency interval in the first aspect of the present disclosure are implemented.

[0032] The fourth aspect of the present invention discloses a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any one of the methods for quickly calculating an electromagnetic interference matrix based on minimum frequency interval in the first aspect of the present disclosure are implemented.

[0033] The beneficial effects brought by the present invention are as follows:

[0034] It can be seen from the above scheme that the embodiments of the present invention provide a method, system, electronic device and storage medium for quickly calculating the electromagnetic interference matrix based on the minimum frequency interval, which has the following beneficial effects: compared with the interference matrix calculation method of each frequency point, it can greatly improve the efficiency of electromagnetic interference calculation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1A flowchart of a method for quickly calculating an electromagnetic interference matrix based on minimum frequency interval provided according to an embodiment;

[0036] Figure 2 A structural diagram of a system for quickly calculating an electromagnetic interference matrix based on minimum frequency interval according to an embodiment of the present invention;

[0037] Figure 3 The figure is a structural diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] According to a first aspect of the present invention, the present invention discloses a method for quickly calculating an electromagnetic interference matrix based on minimum frequency interval. Figure 1 FIG. 4 is a flowchart of a method for quickly calculating an electromagnetic interference matrix based on a minimum frequency interval according to an embodiment of the present invention. Figure 1 As shown, the method includes:

[0041] Step S1, selecting the minimum frequency point from the frequency points of the first device as the first frequency point; selecting the frequency point with the smallest absolute value of difference from the minimum frequency point from the frequency points of the second device as the second frequency point;

[0042] Step S2, when the first frequency point is used as the transmitting / receiving frequency and the second frequency point is used as the receiving / transmitting frequency, calculating whether there is electromagnetic interference between the first frequency point and the second frequency point, and obtaining a first electromagnetic interference result;

[0043] Step S3, when the first frequency point is used as the receiving frequency and the second frequency point is used as the transmitting frequency, calculating whether there is electromagnetic interference between the first frequency point and the second frequency point, and obtaining a second electromagnetic interference result;

[0044] Step S4: If both the first electromagnetic interference result and the second electromagnetic interference result are no electromagnetic interference, the interference matrix element value is 0; otherwise, the interference matrix element value is 1;

[0045] Step S5, traversing the frequency point sets of the second devices sorted from small to large and the first frequency point to form a first combination set; if the interference matrix element value is 0, according to the size relationship between the first frequency point and the second frequency point, calculate the interference matrix element values ​​of all combinations in the first combination set; if the interference matrix element value is 1, according to the size relationship between the first frequency point and the second frequency point, calculate the interference matrix element values ​​of all combinations in the first combination set;

[0046] Step S6, traverse the frequency point set of the first device sorted from small to large and all the frequency points of the second device to form a second combination set; repeat steps S1 to S5 to calculate the interference matrix element values ​​of all combinations in the second combination set.

[0047] In step S1, the minimum frequency point is selected from the frequency points of the first device as the first frequency point; and the frequency point with the smallest absolute value of difference from the minimum frequency point is selected from the frequency points of the second device as the second frequency point.

[0048] Specifically, the two devices are the first device and the second device, wherein the first device has m frequency points, and the frequency values ​​from small to large are [A1, A2, ..., A m ]; The second device has n frequency points, constituting a frequency point set whose frequency values ​​are sorted from small to large.

[0049] In step S2, when the first frequency point is used as the transmitting frequency and the second frequency point is used as the receiving frequency, it is calculated whether there is electromagnetic interference between the first frequency point and the second frequency point to obtain a first electromagnetic interference result.

[0050] Specifically, the radiation power density S at the second device when the first device transmits is calculated as:

[0051]

[0052] Among them, P A is the transmission power of the first device, G A is the antenna gain of the first device. The interference power P received by the antenna of the sensitive device r for

[0053] P r =S·A r

[0054] A r is the effective receiving area of ​​the receiving antenna of the second device, which can be expressed as

[0055]

[0056] λ r The wavelength received by device B, G B is the receiving antenna gain of device B, where λ r Expressed as

[0057]

[0058] c is the speed of light. Thus, the relationship between interference power and transmitter power can be expressed as

[0059]

[0060] A transmits at frequency A1, frequency f B The sideband suppression is L, then the interference power at the receiving frequency is

[0061]

[0062] The sensitivity level of the second device is S B If P r >S B , then the first device transmits with A1 and the second device transmits with f B There is electromagnetic interference between the two during reception; otherwise there is no electromagnetic interference.

[0063] In step S3, when the first frequency point is used as the receiving frequency and the second frequency point is used as the transmitting frequency, it is calculated whether there is electromagnetic interference between the first frequency point and the second frequency point to obtain a second electromagnetic interference result.

[0064] Specifically, the radiation power density S at the first device when the second device transmits is calculated as:

[0065]

[0066] Among them, P B is the transmission power of the second device, G B is the antenna gain of the second device. The interference power P received by the antenna of the sensitive device r for

[0067] P r =S·A r

[0068] A r is the effective receiving area of ​​the first device receiving antenna, which can be expressed as

[0069]

[0070] λ r The first device receives the wavelength, G A is the first device receiving antenna gain, where λ r Expressed as

[0071]

[0072] c is the speed of light. Thus, the relationship between interference power and transmitter power can be expressed as

[0073]

[0074] The second device generates a signal at a frequency f B The sideband suppression of the transmitting frequency A1 is L, then the interference power at the receiving frequency is

[0075]

[0076] The sensitivity level of the first device is S A If P r >S A , then the first device receives it at A1, and the second device receives it at f B There is electromagnetic interference between the two during transmission; otherwise there is no electromagnetic interference.

[0077] In step S4, if both the first electromagnetic interference result and the second electromagnetic interference result are no electromagnetic interference, the interference matrix element value is 0; otherwise, the interference matrix element value is 1.

[0078] Specifically, if the first device or the second device only transmits or only receives, the spectrum compatibility result is a single working condition calculation result.

[0079] In step S5, the frequency point set of the second device sorted from small to large and the first frequency point are traversed to form a first combination set; if the interference matrix element value is 0, the interference matrix element values ​​of all combinations in the first combination set are calculated according to the size relationship between the first frequency point and the second frequency point; if the interference matrix element value is 1, the interference matrix element values ​​of all combinations in the first combination set are calculated according to the size relationship between the first frequency point and the second frequency point.

[0080] In some embodiments, in step S5, if the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point includes:

[0081] When the second frequency point = the first frequency point, the interference matrix element values ​​of all frequency points of the second device combined with the first frequency point are all 0; because other frequency points and the closest frequency point have a sideband suppression, it is even less likely to generate electromagnetic interference, so other matrix elements do not need to be calculated. This is the key to improving the calculation efficiency of the interference matrix.

[0082] If the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0083] When the second frequency point>the first frequency point, the interference matrix element values ​​of the second device's frequency points greater than the second frequency point and the first frequency point are all 0; BThe closest A1 frequency point is selected from the frequency points for calculation, and the frequency point whose interference matrix value is 0 is found. Then the matrix element values ​​smaller than this frequency point are all 0.

[0084] If the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0085] When the second frequency point is less than the first frequency point, the interference matrix element values ​​of the combination of all the frequencies of the second device that are less than the second frequency point and the first frequency point are all 0; B The closest A1 frequency point is selected from the frequency points for calculation, and the frequency point whose interference matrix value is 0 is found. Then the matrix element values ​​smaller than this frequency point are all 0.

[0086] If the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point includes:

[0087] When the second frequency point = the first frequency point, on the side greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

[0088] If the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0089] When the second frequency point>the first frequency point, on the side of the frequency point greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side of the frequency point less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

[0090] If the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0091] When the second frequency point < the first frequency point, on the side of the frequency point greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with an interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side of the frequency point less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the previous frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the previous frequency point, until the corresponding frequency point with an interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

[0092] In summary, the solution proposed in the present invention can reduce the number of calculations of the entire electromagnetic interference matrix by finding the minimum frequency interval, thereby improving the calculation efficiency.

[0093] Embodiment 2:

[0094] The invention discloses a rapid calculation system of an electromagnetic interference matrix based on minimum frequency interval. Figure 2 FIG. 4 is a structural diagram of a system for quickly calculating an electromagnetic interference matrix based on minimum frequency interval according to an embodiment of the present invention; Figure 2 As shown, the system 100 includes:

[0095] The first processing module 101 is configured to select a minimum frequency point from among the frequency points of the first device as the first frequency point; and select a frequency point with the smallest absolute value of difference from the minimum frequency point from among the frequency points of the second device as the second frequency point;

[0096] The second processing module 102 is configured to calculate whether there is electromagnetic interference between the first frequency point and the second frequency point when the first frequency point is the transmitting / receiving frequency and the second frequency point is the receiving / transmitting frequency, and obtain a first electromagnetic interference result;

[0097] The third processing module 103 is configured to calculate whether there is electromagnetic interference between the first frequency point and the second frequency point when the first frequency point is the receiving frequency and the second frequency point is the transmitting frequency, and obtain a second electromagnetic interference result;

[0098] The fourth processing module 104 is configured to: if both the first electromagnetic interference result and the second electromagnetic interference result are no electromagnetic interference, the interference matrix element value is 0; otherwise, the interference matrix element value is 1;

[0099] The fifth processing module 105 is configured to traverse the frequency point sets of the second devices sorted from small to large and the first frequency point to form a first combination set; if the interference matrix element value is 0, calculate the interference matrix element values ​​of all combinations in the first combination set according to the size relationship between the first frequency point and the second frequency point; if the interference matrix element value is 1, calculate the interference matrix element values ​​of all combinations in the first combination set according to the size relationship between the first frequency point and the second frequency point;

[0100] The sixth processing module 106 is configured to traverse the frequency point set of the first device and all the frequency points of the second device sorted from small to large to form a second combination set; repeat the first processing module to the fifth processing module to calculate the interference matrix element values ​​of all combinations in the second combination set.

[0101] According to the system of the second aspect of the present invention, the first processing module 101 is specifically configured as follows: the two devices are respectively a first device and a second device, wherein the first device has m frequency points, and the frequency values ​​from small to large are respectively [A1, A2, ..., A m ]; The second device has n frequency points, constituting a frequency point set whose frequency values ​​are sorted from small to large.

[0102] According to the system of the second aspect of the present invention, the second processing module 102 is specifically configured to calculate the radiation power density S at the second device when the first device transmits:

[0103]

[0104] Among them, P A is the transmission power of the first device, G A is the antenna gain of the first device. The interference power P received by the antenna of the sensitive device r for

[0105] P r =S·A r

[0106] A r is the effective receiving area of ​​the receiving antenna of the second device, which can be expressed as

[0107]

[0108] λ r The wavelength received by device B, G B is the receiving antenna gain of device B, where λ r Expressed as

[0109]

[0110] c is the speed of light. Thus, the relationship between interference power and transmitter power can be expressed as

[0111]

[0112] A transmits at frequency A1, frequency f B The sideband suppression is L, then the interference power at the receiving frequency is

[0113]

[0114] The sensitivity level of the second device is S B If P r >S B , then the first device transmits with A1 and the second device transmits with f B There is electromagnetic interference between the two during reception; otherwise there is no electromagnetic interference.

[0115] According to the system of the second aspect of the present invention, the third processing module 103 is specifically configured to calculate the radiation power density S at the first device when the second device transmits:

[0116]

[0117] Among them, P B is the transmission power of the second device, G B is the antenna gain of the second device. The interference power P received by the antenna of the sensitive device r for

[0118] P r =S·A r

[0119] A r is the effective receiving area of ​​the first device receiving antenna, which can be expressed as

[0120]

[0121] λ r The first device receives the wavelength, G A is the first device receiving antenna gain, where λ r Expressed as

[0122]

[0123] c is the speed of light. Thus, the relationship between interference power and transmitter power can be expressed as

[0124]

[0125] The second device generates a signal at a frequency f B The sideband suppression of the transmitting frequency A1 is L, then the interference power at the receiving frequency is

[0126]

[0127] The sensitivity level of the first device is S A If P r >S A , then the first device receives it at A1, and the second device receives it at f B There is electromagnetic interference between the two during transmission; otherwise there is no electromagnetic interference.

[0128] According to the system of the second aspect of the present invention, the fourth processing module 104 is specifically configured such that if the first device or the second device only transmits or only receives, the spectrum compatibility result is a single working condition calculation result.

[0129] According to the system of the second aspect of the present invention, the fifth processing module 105 is specifically configured as follows: if the interference matrix element value is 0, according to the magnitude relationship between the first frequency point and the second frequency point, calculating the interference matrix element values ​​of all combinations in the first combination set includes:

[0130] When the second frequency point = the first frequency point, the interference matrix element values ​​of all frequency points of the second device combined with the first frequency point are all 0; because other frequency points and the closest frequency point have a sideband suppression, it is even less likely to generate electromagnetic interference, so other matrix elements do not need to be calculated. This is the key to improving the calculation efficiency of the interference matrix.

[0131] If the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0132] When the second frequency point>the first frequency point, the interference matrix element values ​​of the second device's frequency points greater than the second frequency point and the first frequency point are all 0; B The closest A1 frequency point is selected from the frequency points for calculation, and the frequency point whose interference matrix value is 0 is found. Then the matrix element values ​​smaller than this frequency point are all 0.

[0133] If the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0134] When the second frequency point is less than the first frequency point, the interference matrix element values ​​of the combination of all the frequencies of the second device that are less than the second frequency point and the first frequency point are all 0; B The closest A1 frequency point is selected from the frequency points for calculation, and the frequency point whose interference matrix value is 0 is found. Then the matrix element values ​​smaller than this frequency point are all 0.

[0135] If the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point includes:

[0136] When the second frequency point = the first frequency point, on the side greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

[0137] If the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0138] When the second frequency point>the first frequency point, on the side of the frequency point greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side of the frequency point less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

[0139] If the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes:

[0140] When the second frequency point < the first frequency point, on the side of the frequency point greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with an interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side of the frequency point less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the previous frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the previous frequency point, until the corresponding frequency point with an interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

[0141] Embodiment 3:

[0142] The present application discloses an electronic device, which includes a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of any one of the methods for quickly calculating an electromagnetic interference matrix based on a minimum frequency interval in the first embodiment of the present invention are implemented.

[0143] Figure 3 is a structural diagram of an electronic device according to an embodiment of the present invention, such as Figure 3 As shown, the electronic device includes a processor, a memory, a communication interface, a display screen and an input device connected via a system bus. Among them, the processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the electronic device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, near field communication (NFC) or other technologies. The display screen of the electronic device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic device can be a touch layer covered on the display screen, or a button, a trackball or a touch pad set on the housing of the electronic device, or an external keyboard, touch pad or mouse, etc.

[0144] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a structural diagram of the part related to the technical solution of the present disclosure, and does not constitute a limitation on the electronic device to which the technical solution of the present application is applied. The specific electronic device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0145] Embodiment 4:

[0146] The present invention discloses a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of any one of the methods for quickly calculating an electromagnetic interference matrix based on a minimum frequency interval in Embodiment 1 of the present invention are implemented.

[0147] Please note that the technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above embodiments only express several implementation methods of the present application, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several variations and improvements can be made, which all belong to the scope of protection of the present application. Therefore, the scope of protection of the patent in this application shall be based on the attached claims.

[0148] The embodiments of the subject matter and functional operations described in this specification may be implemented in the following: digital electronic circuits, tangibly embodied computer software or firmware, computer hardware including the structures disclosed in this specification and their structural equivalents, or a combination of one or more of them. The embodiments of the subject matter described in this specification may be implemented as one or more computer programs, i.e., one or more modules in computer program instructions encoded on a tangible non-temporary program carrier to be executed by a data processing device or to control the operation of the data processing device. Alternatively or additionally, the program instructions may be encoded on an artificially generated propagation signal, such as a machine-generated electrical, optical or electromagnetic signal, which is generated to encode information and transmit it to a suitable receiver device for execution by a data processing device. The computer storage medium may be a machine-readable storage device, a machine-readable storage substrate, a random or serial access memory device, or a combination of one or more of them.

[0149] The processes and logic flows described in this specification can be performed by one or more programmable computers executing one or more computer programs to perform corresponding functions by operating on input data and generating output. The processes and logic flows can also be performed by special purpose logic circuits, such as FPGAs (field programmable gate arrays) or ASICs (application-specific integrated circuits), and the apparatus can also be implemented as special purpose logic circuits.

[0150] Computers suitable for executing computer programs include, for example, general and / or special microprocessors, or any other type of central processing unit. Typically, the central processing unit will receive instructions and data from a read-only memory and / or a random access memory. The basic components of a computer include a central processing unit for implementing or executing instructions and one or more memory devices for storing instructions and data. Typically, the computer will also include one or more large-capacity storage devices for storing data, such as magnetic disks, magneto-optical disks, or optical disks, or the computer will be operably coupled to this large-capacity storage device to receive data from it or to transmit data to it, or both. However, the computer does not necessarily have such a device. In addition, the computer can be embedded in another device, such as a mobile phone, a personal digital assistant (PDA), a mobile audio or video player, a game console, a global positioning system (GPS) receiver, or a portable storage device such as a universal serial bus (USB) flash drive, to name a few.

[0151] Computer readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including, for example, semiconductor memory devices (e.g., EPROM, EEPROM and flash memory devices), magnetic disks (e.g., internal hard disks or removable disks), magneto-optical disks, and CD ROM and DVD-ROM disks. The processor and memory may be supplemented by, or incorporated in, special purpose logic circuitry.

[0152] Although this specification includes many specific implementation details, these should not be interpreted as limiting the scope of any invention or the scope of protection claimed, but are mainly used to describe the features of the specific embodiments of specific inventions. Certain features described in multiple embodiments in this specification may also be implemented in combination in a single embodiment. On the other hand, the various features described in a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination. In addition, although features may work in certain combinations as described above and even initially claim protection, one or more features from the claimed combination may be removed from the combination in some cases, and the claimed combination may point to a sub-combination or a variation of a sub-combination.

[0153] Similarly, although operations are depicted in a particular order in the accompanying drawings, this should not be understood as requiring that these operations be performed in the particular order shown or performed sequentially, or requiring that all illustrated operations be performed to achieve the desired results. In some cases, multitasking and parallel processing may be advantageous. In addition, the separation of various system modules and components in the above-described embodiments should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product, or packaged into multiple software products.

[0154] Thus, specific embodiments of the subject matter have been described. Other embodiments are within the scope of the appended claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the particular order or sequential order shown to achieve the desired results. In some implementations, multitasking and parallel processing may be advantageous.

[0155] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A fast calculation method for electromagnetic interference matrix based on minimum frequency interval, characterized in that: include: Step S1, selecting the minimum frequency point among the frequency points of the first device as the first frequency point; Selecting a frequency point with the smallest absolute value of difference from the minimum frequency point among the frequency points of the second device as the second frequency point; Step S2, when the first frequency point is used as the transmitting / receiving frequency and the second frequency point is used as the receiving / transmitting frequency, calculating whether there is electromagnetic interference between the first frequency point and the second frequency point, and obtaining a first electromagnetic interference result; Step S3, when the first frequency point is used as the receiving frequency and the second frequency point is used as the transmitting frequency, calculating whether there is electromagnetic interference between the first frequency point and the second frequency point, and obtaining a second electromagnetic interference result; Step S4: if both the first electromagnetic interference result and the second electromagnetic interference result are no electromagnetic interference, then the interference matrix element value is 0; Otherwise, the interference matrix element value is 1; Step S5, traversing the frequency point sets of the second devices sorted from small to large and the first frequency point to form a first combination set; if the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the size relationship between the first frequency point and the second frequency point; If the interference matrix element value is 1, the interference matrix element values ​​of all combinations in the first combination set are calculated according to the magnitude relationship between the first frequency point and the second frequency point; Step S6, traverse the frequency point set of the first device sorted from small to large and all the frequency points of the second device to form a second combination set; repeat steps S1 to S5 to calculate the interference matrix element values ​​of all combinations in the second combination set.

2. The method for rapid calculation of electromagnetic interference matrix based on minimum frequency interval according to claim 1 is characterized in that: In step S5, if the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point includes: When the second frequency point=the first frequency point, the interference matrix element values ​​of all combinations of the frequency points of the second device and the first frequency point are all zero.

3. The method for rapid calculation of electromagnetic interference matrix based on minimum frequency interval according to claim 2 is characterized in that: In step S5, if the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes: When the second frequency point>the first frequency point, the interference matrix element values ​​of the second device that are a combination of all frequency points greater than the second frequency point and the first frequency point are all 0.

4. The method for rapid calculation of electromagnetic interference matrix based on minimum frequency interval according to claim 3 is characterized in that: In step S5, if the interference matrix element value is 0, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes: When the second frequency point is less than the first frequency point, the interference matrix element values ​​of the combination of all frequency points of the second device that are less than the second frequency point and the first frequency point are all 0.

5. The method for rapid calculation of electromagnetic interference matrix based on minimum frequency interval according to claim 1, characterized in that: In step S5, if the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point includes: When the second frequency point = the first frequency point, on the side greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

6. The method for rapid calculation of electromagnetic interference matrix based on minimum frequency interval according to claim 5, characterized in that: In step S5, if the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes: When the second frequency point>the first frequency point, on the side of the frequency point greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side of the frequency point less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with the interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

7. The method for rapid calculation of electromagnetic interference matrix based on minimum frequency interval according to claim 6 is characterized in that: In step S5, if the interference matrix element value is 1, calculating the interference matrix element values ​​of all combinations in the first combination set according to the magnitude relationship between the first frequency point and the second frequency point further includes: When the second frequency point < the first frequency point, on the side of the frequency point greater than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the next frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the next frequency point, until the corresponding frequency point with an interference matrix element of 0 is found, and the first right frequency point is obtained; the interference matrix elements corresponding to all frequency points greater than the first right frequency point are 0; on the side of the frequency point less than the second frequency point in the frequency point set of the second device, calculate the interference matrix element corresponding to the previous frequency point of the second frequency point, if the interference matrix element is 1, then calculate the interference matrix element corresponding to the previous frequency point, until the corresponding frequency point with an interference matrix element of 0 is found, and the first left frequency point is obtained; the interference matrix elements corresponding to all frequency points less than the first left frequency point are 0.

8. A fast calculation system for electromagnetic interference matrix based on minimum frequency interval, characterized in that: The system comprises: The first processing module is configured to select a minimum frequency point from the frequency points of the first device as the first frequency point; and select a frequency point with the smallest absolute value of difference from the minimum frequency point from the frequency points of the second device as the second frequency point; The second processing module is configured to calculate whether there is electromagnetic interference between the first frequency point and the second frequency point when the first frequency point is used as the transmitting / receiving frequency and the second frequency point is used as the receiving / transmitting frequency, so as to obtain a first electromagnetic interference result; The third processing module is configured to calculate whether there is electromagnetic interference between the first frequency point and the second frequency point when the first frequency point is the receiving frequency and the second frequency point is the transmitting frequency, so as to obtain a second electromagnetic interference result; A fourth processing module is configured to: if both the first electromagnetic interference result and the second electromagnetic interference result are no electromagnetic interference, the interference matrix element value is 0; otherwise, the interference matrix element value is 1; The fifth processing module is configured to traverse the frequency point set of the second device sorted from small to large and the first frequency point to form a first combination set; if the interference matrix element value is 0, calculate the interference matrix element values ​​of all combinations in the first combination set according to the size relationship between the first frequency point and the second frequency point; if the interference matrix element value is 1, calculate the interference matrix element values ​​of all combinations in the first combination set according to the size relationship between the first frequency point and the second frequency point; The sixth processing module is configured to traverse the frequency point set of the first device and all the frequency points of the second device sorted from small to large to form a second combination set; repeat the first processing module to the fifth processing module to calculate the interference matrix element values ​​of all combinations in the second combination set.

9. An electronic device, characterized in that: The electronic device includes a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, the steps in the method for quickly calculating an electromagnetic interference matrix based on minimum frequency interval described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the method for quickly calculating an electromagnetic interference matrix based on minimum frequency interval described in any one of claims 1 to 7 are implemented.

Images