Signal output device and electronic equipment

Abstract

The present application provides a signal output device and an electronic device, the device comprising: a first antenna, a second antenna, a double-pole switch, a first amplifying unit, a second amplifying unit, a phase shift unit, a first processing unit and a second processing unit, wherein: the first end of the double-pole switch is connected to the first antenna, the second end of the double-pole switch is connected to the input end of the first amplifying unit, and the first end and the second end of the double-pole switch are connected; the third end of the double-pole switch is connected to the second antenna, the fourth end of the double-pole switch is connected to the input end of the second amplifying unit, and the third end and the fourth end of the double-pole switch are connected; the output end of the first amplifying unit is connected to the input end of the first processing unit, and the output end of the first amplifying unit is connected to the input end of the second processing unit; the output end of the second amplifying unit is connected to the input end of the first processing unit, and the output end of the second amplifying unit is connected to the input end of the second processing unit through the phase shift unit. The present application can improve the timeliness of signal reception.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a signal output device and an electronic device. Background Art

[0002] With the rapid development of the positioning market and demand, the demand for precise positioning services has exploded in recent years. By obtaining the direction of the signal's arrival angle, the position of the device to be positioned relative to the base station receiving the signal can be determined. When the signal reaches the base station receiving antenna, it has a certain arrival angle. The length of the signal to each antenna array is different, so the signal received by each antenna has the same frequency but different phases, that is, the signals received by different antennas have a phase difference. The base station receiving antenna mostly adopts a rectangular or circular design. In the existing solution, a single-pole switch is used to poll each antenna array at a certain period to obtain the signals received by different antennas and calculate the phase difference of the signals. The angle of arrival of the signal is obtained by the phase difference, so as to perform positioning. However, there is an interval time when a single-pole switch is used to poll each antenna array to obtain the signals received by different antennas, resulting in poor timeliness in receiving the signal. Summary of the invention

[0003] The embodiments of the present application provide a signal output device and an electronic device to solve the problem of poor timeliness of received signals.

[0004] In a first aspect, an embodiment of the present application provides a signal output device, including: a first antenna, a second antenna, a double-pole switch, a first amplifying unit, a second amplifying unit, a phase shifting unit, a first processing unit, and a second processing unit, wherein:

[0005] The first end of the double-pole switch is connected to the first antenna, the second end of the double-pole switch is connected to the input end of the first amplifying unit, and the first end and the second end of the double-pole switch are in communication;

[0006] The third end of the double-pole switch is connected to the second antenna, the fourth end of the double-pole switch is connected to the input end of the second amplifying unit, and the third end and the fourth end of the double-pole switch are connected;

[0007] The output end of the first amplifying unit is connected to the input end of the first processing unit, and the output end of the first amplifying unit is connected to the input end of the second processing unit;

[0008] The output end of the second amplifying unit is connected to the input end of the first processing unit, and the output end of the second amplifying unit is connected to the input end of the second processing unit through the phase shift unit;

[0009] The first processing unit is used to receive two signals for processing and output a first processed signal, and the second processing unit is used to receive two signals for processing and output a second processed signal.

[0010] In a second aspect, an embodiment of the present application further provides an electronic device, which includes the signal output device disclosed in the first aspect of the embodiment of the present application.

[0011] Thus, in this embodiment, two signals with the same frequency but different phases received by the first antenna and the second antenna are processed, and the first processed signal and the second processed signal are output. By processing the two signals simultaneously received by the first antenna and the second antenna, the technical effect of improving the timeliness of signal reception can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0013] Figure 1 is a structural schematic diagram of a signal output device provided in an embodiment of the present application;

[0014] Figure 2 It is a structural schematic diagram of another signal output device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] See also Figure 1 , Figure 1 is a schematic diagram of a structure of a signal output device provided in an embodiment of the present application, such as Figure 1 As shown, the device 100 includes: a first antenna 101, a second antenna 102, a double-pole switch 103, a first amplifying unit 104, a second amplifying unit 105, a phase shifting unit 106, a first processing unit 107 and a second processing unit 108, wherein:

[0017] The first end of the double-pole switch 103 is connected to the first antenna 101, the second end of the double-pole switch 103 is connected to the input end of the first amplifying unit 104, and the first end and the second end of the double-pole switch 103 are in communication;

[0018] The third end of the double-pole switch 103 is connected to the second antenna, the fourth end of the double-pole switch 103 is connected to the input end of the second amplifying unit 105, and the third end and the fourth end of the double-pole switch 103 are connected;

[0019] The output end of the first amplifying unit 104 is connected to the input end of the first processing unit 107, and the output end of the first amplifying unit 104 is connected to the input end of the second processing unit 108;

[0020] The output end of the second amplifying unit 105 is connected to the input end of the first processing unit 107, and the output end of the second amplifying unit 105 is connected to the input end of the second processing unit 108 through the phase shift unit 106;

[0021] The first processing unit 107 is used for receiving two signals, processing them, and outputting a first processed signal. The second processing unit 108 is used for receiving two signals, processing them, and outputting a second processed signal.

[0022] Among them, the above-mentioned first antenna 101 and the above-mentioned second antenna 102 can be any two antennas among the multiple antennas in the device 100. For example, when the antenna array of the device 100 includes antenna 1, antenna 2 and antenna 3, the above-mentioned first antenna 101 and the above-mentioned second antenna 102 can be the above-mentioned antenna 1 and the above-mentioned antenna 2 respectively, and the above-mentioned first antenna 101 and the above-mentioned second antenna 102 can also be the above-mentioned antenna 2 and the above-mentioned antenna 3 respectively. In addition, the above-mentioned double-pole switch 103 can poll all antennas of the device 100 at a certain period, and two signals with the same frequency but different phases can be received simultaneously through the above-mentioned first antenna 101 and the above-mentioned second antenna 102.

[0023] The first amplifying unit 104 and the second amplifying unit 105 can amplify the amplitude of the received signal. For example, if a signal with an initial phase of The sine signal is then outputted through the first amplifying unit 104. That is, a sinusoidal signal with an amplitude of a1; if a sinusoidal signal with an initial phase of The sine signal is then output through the second amplification unit 105. That is, a sinusoidal signal with an amplitude of a2.

[0024] The phase difference between the signals received by the first antenna 101 and the second antenna 102 can be obtained by the first processed signal and the second processed signal. As an example, the signal received by the first antenna 101 is amplified by the first amplifying unit 104 to be: The signal received by the second antenna 102 is amplified by the second amplifying unit 105 to be The first processing unit 107 and the second processing unit 108 can respectively receive the same signal after being amplified by the first amplifying unit 104 and then divided into two paths. After being amplified by the second amplifying unit 105, the above signal is divided into two identical signals. The received signal is transmitted to the first processing unit 107 and the phase shift unit 106 respectively. The phase shift unit 106 can perform a 90-degree phase shift on the received signal and output To the second processing unit 108, that is, the first processing unit 107 receives the signal and signal And process, the second processing unit 108 receives the signal and signal And processed, the output of the first processing unit 107 is a signal The output of the second processing unit 108 is a signal The phase difference is The phase difference can be obtained according to the output of the first processing unit 107 and the output of the second processing unit 108. Therefore, the arrival angle of the signal can be obtained according to the above phase difference.

[0025] In this embodiment, two signals with the same frequency but different phases received by the first antenna 101 and the second antenna 102 are processed, and the first processed signal and the second processed signal are output. By processing the two signals simultaneously received by the first antenna 101 and the second antenna 102, a technical effect of improving the timeliness of signal reception can be achieved.

[0026] In addition, the device 100 uses the two received signals to process and output the first processed signal and the second processed signal, which can avoid the frequency deviation between the signals received by different antennas due to the Doppler effect when the object moves at high speed, and eliminates the local oscillator. The signal output by the high-precision local oscillator is not needed to process the received signal, which can reduce the cost of the device 100.

[0027] Optional, such as Figure 2As shown, the first processing unit 107 includes a first mixer 1071, the output end of the first amplifying unit 104 is connected to the input end of the first mixer 1071, and the output end of the second amplifying unit 105 is connected to the input end of the first mixer 1071;

[0028] The first mixer 1071 is used to receive two signals, perform mixing, and output a first mixed signal.

[0029] The first mixer 1071 can multiply the two received signals and output them. For example, the two received signals can be respectively and When , after passing through the first mixer 1071, the output is

[0030] In this implementation, the first mixer 1071 can mix the two received signals, that is, mix the processed signals received by the first antenna 101 and the second antenna 102 respectively, avoiding the use of the signal output by a high-precision local oscillator, thereby reducing the cost of the device 100.

[0031] Optional, such as Figure 2 As shown, the first processing unit 107 further includes a first filter 1072, and the output end of the first mixer 1071 is connected to the input end of the first filter 1072;

[0032] The first filter 1072 is used to receive the first mixed signal, perform filtering, and output the first processed signal.

[0033] The first filter 1072 can filter out specific frequency components in the received signal. For example, the output signal of the first mixer 1071 can be After being processed by the first filter 1072, the output signal can be In addition, through the above output signal Can get The value of , that is, the phase difference information is obtained.

[0034] In this implementation manner, the first mixed signal is filtered by the first filter 1072 to output the first processed signal, and the phase difference information can be quickly obtained according to the first processed signal.

[0035] Optional, such as Figure 2As shown, the second processing unit 108 includes a second mixer 1081, the output end of the first amplifying unit 104 is connected to the input end of the second mixer 1081, and the output end of the second amplifying unit 105 is connected to the input end of the second mixer 1081 through the phase shift unit;

[0036] The second mixer 1081 is used for receiving two signals, mixing them, and outputting a second mixed signal.

[0037] The second mixer 1081 can multiply the two received signals and output them. For example, the two received signals can be respectively and When the frequency is passed through the second mixer 1081, the output is

[0038] In this implementation, the second mixer 1081 can mix the two received signals, that is, mix the processed signals received by the first antenna 101 and the second antenna 102 respectively, avoiding the use of a high-precision local oscillator to output the signal, thereby reducing the cost of the device 100.

[0039] Optional, such as Figure 2 As shown, the second processing unit 108 further includes a second filter 1082, and the output end of the second mixer 1081 is connected to the input end of the second filter 1082;

[0040] The second filter 1082 is used for receiving the second mixed signal, filtering it, and outputting the second processed signal.

[0041] The second filter 1082 can filter out specific frequency components in the received signal. For example, the output signal of the second mixer 1082 can be After being processed by the second filter 1082, the output signal can be In addition, the output signal Can get The value of , that is, the phase difference information is obtained.

[0042] In this implementation manner, the first mixed signal is filtered by the second filter 1082 to output the first processed signal, and the phase difference information can be quickly obtained according to the first processed signal.

[0043] In addition, the phase difference information of the received signal can be directly obtained through the above-mentioned first processed signal and the above-mentioned second processed signal, so as to obtain the signal arrival angle of the above-mentioned received signal for positioning the device transmitting the signal. For example, if the signal arrives at the antenna of the device 100 at an angle α, the distance difference between the signal reaching the first antenna 101 and the second antenna 102 is Δd, the distance between the first antenna 101 and the second antenna 102 is L, λ is the wavelength of the signal, and Δd can be obtained by the phase difference of the signal received by the first antenna 101 and the second antenna 102. Sure:

[0044] The arrival angle of the signal can be obtained through the trigonometric function relationship: Substituting λ=c / f, where c represents the speed of light and f represents the frequency of the received signal, the arrival angle of the signal to be measured can be expressed as: That is, the angle of arrival of the signal can be obtained according to the phase difference between the signals received by the first antenna 101 and the second antenna 102 .

[0045] In addition, the first processing unit 107 may include the first mixer 1071 and the first filter 1072, and the second processing unit 108 may include the first mixer 1081 and the second filter 1082, that is, the hardware symmetry between the second processing unit 108 and the first processing unit 107 is relatively high, and the phase difference obtained by outputting the first processing signal and the second processing signal is used for positioning, which is easier to calibrate.

[0046] Optional, such as Figure 2 As shown, the device further includes a first power divider 109, the output end of the first amplifying unit 104 is connected to the input end of the first power divider 109, the output end of the first power divider 109 is connected to the input end of the first mixer 1071, and the output end of the first power divider 109 is connected to the input end of the second mixer 1081;

[0047] The first power divider 109 is used to divide the signal output by the first amplifying unit 104 into a first signal and a second signal, and send the first signal to the first mixer 1071 and send the second signal to the second mixer 1081 .

[0048] The first power divider 109 can divide the input signal into two identical signals. For example, the input signal is Two identical signals can be output

[0049] In this implementation, the input signal can be divided into a first signal and a second signal by the first power divider 109, the first signal is sent to the first mixer 1071, and the second signal is sent to the second mixer 1081, and mixing processing is performed separately to obtain two output signals for obtaining a phase difference, thereby improving the positioning accuracy.

[0050] Optional, such as Figure 2 As shown, the first amplifying unit 104 includes a first amplifier 1041 and a first adjustable amplifier 1042, the second end of the double-pole switch 103 is connected to the input end of the first amplifier 1041, the output end of the first amplifier 1041 is connected to the input end of the first adjustable amplifier 1042, and the output end of the first adjustable amplifier 1042 is connected to the input end of the first power divider 109;

[0051] The first amplifier 1041 and the first adjustable amplifier 1042 are used to amplify received signals.

[0052] The first amplifier 1041 may be a plurality of amplifiers. For example, the amplitude of the signal received by the first antenna 101 may be amplified to a certain multiple through the first amplifier 1041 and the first adjustable amplifier 1042 .

[0053] In this implementation, the received signal can be amplified by the first amplifier 1041 and the first adjustable amplifier 1042, so that it is easier to process the signal received by the first antenna 101.

[0054] Optional, such as Figure 2 As shown, the device further includes a second power divider 110, the output end of the second amplifying unit 105 is connected to the input end of the second power divider 110, the output end of the second power divider 110 is connected to the input end of the first mixer 1041, and the output end of the second power divider 110 is connected to the input end of the phase shift unit 106;

[0055] The second power divider 110 is used to divide the signal output by the second amplifying unit 105 into a third signal and a fourth signal, and send the third signal to the first mixer 1041 , and send the fourth signal to the phase shift unit 106 .

[0056] The second power divider 110 can divide the input signal into two identical signals. For example, the input signal is Two identical signals can be output

[0057] In this embodiment, the input signal can be divided into a third signal and a fourth signal by the second power divider 110, the third signal is sent to the first mixer 1071, and the fourth signal is sent to the second mixer 1081 after being processed by the phase shift unit 106, and the mixing processing is performed separately to obtain two output signals for obtaining the phase difference, thereby improving the positioning accuracy.

[0058] Optional, such as Figure 2 As shown, the second amplifying unit 105 includes a second amplifier 1051 and a second adjustable amplifier 1052, the fourth end of the double-pole switch 103 is connected to the input end of the second amplifier 1051, the output end of the second amplifier 1051 is connected to the input end of the second adjustable amplifier 1052, and the output end of the second adjustable amplifier 1052 is connected to the input end of the second power divider 110;

[0059] The second amplifier 1051 and the second adjustable amplifier 1052 are used to amplify received signals.

[0060] The second amplifier 1051 may be a plurality of amplifiers. For example, the amplitude of the signal received by the second antenna 102 may be amplified to a certain multiple through the second amplifier 1051 and the second adjustable amplifier 1052 .

[0061] In this implementation, the received signal can be amplified by the second amplifier 1051 and the second adjustable amplifier 1052, so that it is easier to process the signal received by the second antenna 102.

[0062] Optional, such as Figure 2 As shown, the device further includes a switch 111, the output end of the second adjustable amplifier 1052 is connected to the first end of the switch 111, the second end of the switch 111 is connected to the output end of the second power divider 110, and the first end and the second end of the switch 111 are connected;

[0063] The switch 111 is used to control the connection between the second adjustable amplifier 1052 and the second power divider 110 .

[0064] In this embodiment, the switch 111 can control whether the signal received by the second antenna 102 is used to output the first processed signal and the second processed signal after being amplified. When the first end and the second end of the switch 111 are connected, the signals received by the first antenna 101 and the second antenna can be used for processing without using a high-precision local oscillator output signal to process the received signal.

[0065] An embodiment of the present application further provides an electronic device, which includes the above-mentioned signal output device.

[0066] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0067] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A signal output device, characterized in that: include: A first antenna, a second antenna, a double-pole switch, a first amplifying unit, a second amplifying unit, a phase shifting unit, a first processing unit, and a second processing unit, wherein: The first end of the double-pole switch is connected to the first antenna, the second end of the double-pole switch is connected to the input end of the first amplifying unit, and the first end and the second end of the double-pole switch are in communication; The third end of the double-pole switch is connected to the second antenna, the fourth end of the double-pole switch is connected to the input end of the second amplifying unit, and the third end and the fourth end of the double-pole switch are connected; The first processing unit includes a first mixer, the second processing unit includes a second mixer, and the device further includes a first power divider and a second power divider; The output end of the first amplifying unit is connected to the input end of the first power divider, the output end of the first power divider is connected to the input end of the first mixer, and the output end of the first power divider is connected to the input end of the second mixer; The output end of the second amplifying unit is connected to the input end of the second power divider, the output end of the second power divider is connected to the input end of the first mixer, the output end of the second power divider is connected to the input end of the phase shift unit, and the output end of the phase shift unit is connected to the input end of the second mixer; The first processing unit is used to receive two signals for processing and output a first processed signal, and the second processing unit is used to receive two signals for processing and output a second processed signal; The first mixer is used to receive two signals, mix them, and output a first mixed signal; The second mixer is used to receive two signals, mix them, and output a second mixed signal; The first power divider is used to divide the signal output by the first amplifying unit into a first signal and a second signal, and send the first signal to the first mixer and send the second signal to the second mixer; The second power divider is used for dividing the signal output by the second amplifying unit into a third signal and a fourth signal, and sending the third signal to the first mixer and sending the fourth signal to the phase shift unit; The first antenna and the second antenna receive two signals with the same frequency but different phases.

2. The device according to claim 1, characterized in that The first processing unit further includes a first filter, and the output end of the first mixer is connected to the input end of the first filter; The first filter is used to receive the first mixed signal, perform filtering, and output the first processed signal.

3. The device according to claim 1, characterized in that The second processing unit further includes a second filter, and the output end of the second mixer is connected to the input end of the second filter; The second filter is used for receiving the second mixed signal, filtering it, and outputting the second processed signal.

4. The device according to claim 1, characterized in that The first amplifying unit includes a first amplifier and a first adjustable amplifier, the second end of the double-pole switch is connected to the input end of the first amplifier, the output end of the first amplifier is connected to the input end of the first adjustable amplifier, and the output end of the first adjustable amplifier is connected to the input end of the first power divider; The first amplifier and the first adjustable amplifier are used to amplify received signals.

5. The device according to claim 1, characterized in that The second amplifying unit includes a second amplifier and a second adjustable amplifier, the fourth end of the double-pole switch is connected to the input end of the second amplifier, the output end of the second amplifier is connected to the input end of the second adjustable amplifier, and the output end of the second adjustable amplifier is connected to the input end of the second power divider; The second amplifier and the second adjustable amplifier are used to amplify received signals.

6. The device according to claim 5, characterized in that The device further comprises a switch, wherein the output end of the second adjustable amplifier is connected to the first end of the switch, the second end of the switch is connected to the input end of the second power divider, and the first end and the second end of the switch are in communication; The switch is used to control the connection between the second adjustable amplifier and the second power divider.

7. An electronic device, characterized in that: The electronic device comprises the signal output device according to any one of claims 1 to 6.

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