A method and device for analyzing uplink communication capability of a communication system

Abstract

The present invention discloses a method for analyzing the uplink communication capability of a communication system, the method comprising: obtaining the transmission gain of a terminal antenna, the power output by a terminal BUC and the total uplink bandwidth of the terminal; obtaining the saturated output power spectrum density of the terminal according to the transmission gain of the terminal antenna, the power output by the terminal BUC and the total uplink bandwidth of the terminal; obtaining the free space loss; obtaining the terminal transmission quality factor according to the saturated output power spectrum density of the terminal and the free space loss; and taking the positive value of the terminal transmission quality factor. The analysis process is relatively simple and the efficiency is relatively high.

Description

Technical Field

[0001] The present invention relates to the field of satellite communication technology, and in particular to a method and device for analyzing the uplink communication capability of a communication system. Background Art

[0002] The existing analysis method of uplink communication capability of satellite communication system can be used to analyze the relationship between the uplink communication bandwidth of the terminal and the output power of the terminal upconversion power amplifier (BUC) under a specific terminal aperture, the relationship between the satellite's maximum uplink communication capability and the satellite quality factor (G / T), and the relationship between the satellite-to-ground communication signal-to-noise ratio and the satellite quality factor. However, the analysis process is relatively complicated and the efficiency is relatively low. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a method for analyzing the uplink communication capability of a communication system, the method comprising:

[0004] Obtain the terminal antenna transmission gain, the terminal BUC output power and the terminal uplink total bandwidth;

[0005] Acquire the saturated output power spectrum density of the terminal according to the terminal antenna transmission gain, the power output by the terminal BUC and the total uplink bandwidth of the terminal;

[0006] Get free space loss;

[0007] Acquire a terminal transmission quality factor according to the saturated output power spectrum density of the terminal and the free space loss;

[0008] The terminal transmission quality factor is positive.

[0009] Preferably, the terminal transmission quality factor is only related to the terminal aperture.

[0010] Preferably, the terminal transmission quality factor is positive, specifically the terminal transmission quality factor +200.

[0011] Preferably, the saturated output power spectrum density of the terminal is specifically The saturated output power spectral density of the terminal is PSD Terminal , the power output by the terminal BUC is Power BUC , G Terminal-t is the terminal antenna transmission gain and the terminal uplink total bandwidth is BW Termunal .

[0012] Preferably, the terminal transmission quality factor is specifically The free space loss is LFS .

[0013] A device for analyzing uplink communication capability of a communication system, the device comprising:

[0014] The terminal acquisition module is used to obtain the terminal antenna transmission gain, the terminal BUC output power and the terminal uplink total bandwidth;

[0015] An output power spectrum density module is used to obtain the saturated output power spectrum density of the terminal according to the terminal antenna transmission gain, the power output by the terminal BUC and the total uplink bandwidth of the terminal;

[0016] Free space loss module, used to obtain free space loss;

[0017] A terminal transmission quality factor module, used to obtain a terminal transmission quality factor according to the saturated output power spectrum density of the terminal and the free space loss;

[0018] A positive module is used to positively calculate the terminal transmission quality factor.

[0019] Preferably, the terminal transmission quality factor is only related to the terminal aperture.

[0020] Preferably, the terminal transmission quality factor is positive, specifically the terminal transmission quality factor +200.

[0021] Preferably, the saturated output power spectrum density of the terminal is specifically The saturated output power spectral density of the terminal is PSD Terminal , the power output by the terminal BUC is Power BUC , G Terminal-t is the terminal antenna transmission gain and the terminal uplink total bandwidth is BW Terminal .

[0022] Preferably, the terminal transmission quality factor is specifically The free space loss is L FS .

[0023] The method and device for analyzing the uplink communication capability of a communication system provided by the present invention have the following advantages over the prior art: the analysis process is relatively simple and the efficiency is relatively high. The analysis dimension is reduced from two dimensions (considering different combinations of terminal aperture and terminal communication frequency at the same time) to one dimension (only considering the terminal aperture). BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a workflow diagram of an analysis method according to an embodiment of the present invention;

[0025] Figure 2 It is the power output by the terminal BUC under the condition that the terminal diameter is 0.5m according to the implementation scheme of the present invention. BUC , total uplink bandwidth of the terminal BW Terminal and the terminal transmission quality factor Q T The relationship diagram between

[0026] Figure 3 The power output of the terminal BUC under the condition that the terminal diameter is 0.8m according to the implementation scheme of the present invention is BUC , total uplink bandwidth of the terminal BW Terminal and the terminal transmission quality factor Q T The relationship diagram between

[0027] Figure 4 The power output of the terminal BUC under the condition that the terminal diameter is 1.2m according to the implementation scheme of the present invention. BUC , total uplink bandwidth of the terminal BW Terminal and the terminal transmission quality factor Q T The relationship diagram between

[0028] Figure 5 The power output of the terminal BUC under the condition that the terminal diameter is 2.4m according to the implementation scheme of the present invention is BUC , total uplink bandwidth of the terminal BW Terminal and the terminal transmission quality factor Q T The relationship diagram between

[0029] Figure 6 Schematic diagram of the structure of a device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to clearly illustrate the scheme in the present invention, preferred embodiments are given below and described in detail with reference to the accompanying drawings. The following description is essentially only exemplary and is not intended to limit the application or use of the present disclosure. It should be understood that in all the drawings, corresponding reference numerals represent the same or corresponding parts and features.

[0031] like Figure 1 A method for analyzing uplink communication capability of a communication system, the method comprising:

[0032] S101, obtaining the terminal antenna transmission gain, the terminal BUC output power and the terminal uplink total bandwidth;

[0033] S102, according to the terminal antenna transmission gain, the terminal BUC output power and the terminal uplink total bandwidth, obtain the terminal saturated output power spectrum density; the terminal saturated output power spectrum density is specifically: The saturated output power spectral density of the terminal is PSD Terminal , the power output by the terminal BUC is Power BUC , G Terminal- is the terminal antenna transmission gain and the terminal uplink total bandwidth is BW Terminal .

[0034] S103, obtaining free space loss; free space loss L FS , and its calculation formula is:

[0035]

[0036] Where d is the signal propagation distance between the satellite and the terminal, c is the speed of light, and f UL is the uplink terminal communication frequency.

[0037] S104, obtaining a terminal transmission quality factor according to the saturated output power spectrum density and free space loss of the terminal; the terminal transmission quality factor is specifically: The free space loss is L FS The terminal transmission quality factor is only related to the terminal aperture.

[0038] S105: positively evaluate the terminal transmission quality factor.

[0039] The terminal transmission quality factor is positive, specifically the terminal transmission quality factor +200. The meaning of +200 is to make the terminal transmission quality factor Q T The value of is positive and convenient to use.

[0040] Terminal transmission quality factor Q T The physical meaning of is actually the characterization of the power spectrum density intensity of the satellite-side received signal in the uplink of the satellite communication system +200.

[0041] Without analysis by the present invention, the above formula is used when the terminal aperture is 0.5m, 0.8m, 1.2m, 2.4m, and the terminal communication frequency is C band, Ku band, Ka band When performing the analysis, it is necessary to analyze the three different terminal communication frequencies under each terminal caliber separately, so a total of 12 situations need to be analyzed.

[0042] After analysis by the present invention, the above formula is used when the terminal aperture is 0.5m, 0.8m, 1.2m, 2.4m, and the terminal communication frequency is C band, Ku band, and Ka band. When performing the analysis, it is only necessary to analyze the situation of each terminal caliber, so only 4 situations need to be analyzed in total. Compared with the formula The analytical method reduces the analytical workload by 2 / 3. Figure 2-5 This is a diagram showing the simulation analysis results under different terminal calibers.

[0043] Under the condition of each terminal aperture, the relationship curve between the terminal BUC output power, the terminal uplink total bandwidth and the terminal transmission quality factor includes the conditions of all terminal communication frequencies, and there is no need to analyze the conditions of each communication frequency separately.

[0044] like Figure 6 As shown, a communication system returns an uplink communication capability analysis device, the device comprising:

[0045] The terminal acquisition module 201 is used to obtain the terminal antenna transmission gain, the power output by the terminal BUC and the total uplink bandwidth of the terminal;

[0046] The output power spectrum density module 202 is used to obtain the saturated output power spectrum density of the terminal according to the terminal antenna transmission gain, the power output by the terminal BUC and the total uplink bandwidth of the terminal; the saturated output power spectrum density of the terminal is specifically: The saturated output power spectral density of the terminal is PSD Terminal , the power output by the terminal BUC is Power BUC , G terminal- is the terminal antenna transmission gain and the terminal uplink total bandwidth is BW Terminal .

[0047] A free space loss module 203, used to obtain free space loss;

[0048] The terminal transmission quality factor module 204 is used to obtain the terminal transmission quality factor according to the saturated output power spectrum density and free space loss of the terminal; the terminal transmission quality factor is only related to the terminal aperture. The terminal transmission quality factor is specifically The free space loss is L FS .

[0049] The positive module 205 is used to positively calculate the terminal transmission quality factor. The positive calculation of the terminal transmission quality factor is specifically the terminal transmission quality factor + 200.

[0050] In summary, the above contents are only embodiments of the present invention, which are only used to illustrate the principles of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for analyzing uplink communication capability of a communication system, characterized in that: The method includes: Obtain the terminal antenna transmission gain, the terminal BUC output power and the terminal uplink total bandwidth; Obtaining the saturated output power spectrum density of the terminal according to the terminal antenna transmission gain, the power output by the terminal BUC and the total uplink bandwidth of the terminal; Get free space loss; Acquire a terminal transmission quality factor according to the saturated output power spectrum density of the terminal and the free space loss; Taking a positive value for the terminal transmission quality factor; The positive terminal transmission quality factor is specifically the terminal transmission quality factor + 200; The saturated output power spectrum density of the terminal is specifically: The saturated output power spectral density of the terminal is PSD Terminal , the power output by the terminal BUC is Power BUC , G Terminal- is the terminal antenna transmission gain and the terminal uplink total bandwidth is BW Terminal ; The terminal transmission quality factor is specifically: The free space loss is L FS .

2. The method for analyzing the uplink communication capability of a communication system according to claim 1, characterized in that: The terminal transmission quality factor is only related to the terminal aperture.

3. A device for analyzing uplink communication capability of a communication system, characterized in that: The device includes: The terminal acquisition module is used to obtain the terminal antenna transmission gain, the terminal BUC output power and the terminal uplink total bandwidth; An output power spectrum density module, used to obtain the saturated output power spectrum density of the terminal according to the terminal antenna transmission gain, the power output by the terminal BUC and the total uplink bandwidth of the terminal; Free space loss module, used to obtain free space loss; A terminal transmission quality factor module, used to obtain a terminal transmission quality factor according to the saturated output power spectrum density of the terminal and the free space loss; A positive module, used to positively calculate the terminal transmission quality factor; The positive terminal transmission quality factor is specifically the terminal transmission quality factor + 200; The saturated output power spectrum density of the terminal is specifically: The saturated output power spectral density of the terminal is PSD Terminal , the power output by the terminal BUC is Power BUC , G Terminal- is the terminal antenna transmission gain and the terminal uplink total bandwidth is BW Terminal ; The terminal transmission quality factor is specifically: The free space loss is L FS .

4. The device for analyzing uplink communication capability of a communication system according to claim 3, characterized in that: The terminal transmission quality factor is only related to the terminal aperture.

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