Tracking receiving system based on phase shift switching

Abstract

The utility model provides a tracking receiving system based on phase shift switching, which comprises a tracking receiver A, a tracking receiver B, a phase shift switching module and a phase shift synthesis module, and is characterized in that the tracking receiver A and the tracking receiver B are both in TTL communication connection with a controlled end of the phase shift switching module; the controlled ends of the phase shift switching module and the phase shift synthesis module are in DIF communication connection, the signal output end of the phase shift synthesis module is connected with the signal input end of the phase shift switching module, and the signal output end of the phase shift switching module is in switching connection between the input end of the tracking receiver A and the input end of the tracking receiver B.

Description

Technical Field

[0001] The utility model relates to the technical field of tracking receivers, in particular to a tracking receiving system based on phase shift switching. Background Art

[0002] At present, the tracking subsystem is composed of a phase-shift synthesis module, a tracking down-converter, and a tracking receiver. The phase-shift synthesis module is used to output the signal to the tracking receiver through the tracking down-converter. When completing the system tracking task, the tracking receiver generally needs to generate a phase-shift signal to the phase-shift synthesis module through the DIF communication control module so that the phase-shift synthesis module can track the tracking receiver. However, the phase-shift synthesis module cannot simultaneously track two tracking receivers connected to it by the DIF communication module, resulting in the phase-shift synthesis module being unable to simultaneously perform phase-shift control with the two tracking receivers. In actual use, when a tracking receiver fails, it cannot be handled in time, affecting the tracking task. Utility Model Content

[0003] The utility model aims to provide a tracking receiving system based on phase shift switching, wherein two tracking receivers are connected to a phase shift switching module through a TTL communication control module, and the TTL communication module can output different high and low level signals to the phase shift switching module, so that the phase shift switching module uses DIF communication to output a phase shift signal corresponding to the tracking receiver according to different high and low level signals, so as to complete the hot backup switching between the two tracking receivers, and avoid affecting the system tracking task after a tracking receiver fails.

[0004] In order to solve the above technical problems, the utility model adopts the following solutions:

[0005] A tracking receiving system based on phase shift switching comprises a tracking receiver A, a tracking receiver B, a phase shift switching module and a phase shift synthesis module. The tracking receiver A and the tracking receiver B are both connected to the controlled end of the phase shift switching module by TTL communication, the phase shift switching module is connected to the controlled end of the phase shift synthesis module by DIF communication, the signal output end of the phase shift synthesis module is connected to the signal input end of the phase shift switching module, and the signal output end of the phase shift switching module is switched between the input end of the tracking receiver A and the input end of the tracking receiver B.

[0006] Furthermore, the tracking receiver A and tracking receiver B respectively use TTL communication to output corresponding high and low level signals to the phase shift switching module. After receiving the corresponding high and low level signals, the phase shift switching module outputs the corresponding phase shift signal to the phase shift synthesis module through DIF communication, and switches the signal input end of the phase shift switching module to the corresponding output end of tracking receiver A or the output end of tracking receiver B.

[0007] Furthermore, it also includes a host computer, and the controlled ends of the tracking receiver A and the tracking receiver B are connected to the host computer. Under the control of the host computer, the tracking receiver A and the tracking receiver B respectively use TTL communication to output corresponding high and low level signals to the phase shift switching module.

[0008] Furthermore, it also includes a tracking down converter, the signal output end of the phase-shift synthesis module is connected to the input end of the tracking down converter, and the output end of the tracking down converter is connected to the signal input end of the phase-shift switching module.

[0009] Furthermore, it also includes an antenna feed, which is connected to the signal input end of the phase shift synthesis module, and the antenna feed is used to output the sum signal and the difference signal to the phase shift synthesis module. The phase shift synthesis module is used to combine the sum signal and the difference signal, and output the combined signal from the signal output end.

[0010] Furthermore, it also includes a DIF communication control module, the phase shift switching module is connected to the DIF communication control module, and the DIF communication control module is connected to the controlled end of the phase shift synthesis module.

[0011] Furthermore, it also includes a TTL communication module A and a TTL communication module B, the tracking receiver A is connected to the TTL communication module A, the tracking receiver B is connected to the TTL communication module B, and the TTL communication module A and the TTL communication module B are both connected to the signal input end of the phase shift switching module.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a tracking receiving system based on phase shift switching, wherein two tracking receivers are connected to a phase shift switching module through a TTL communication control module, and the TTL communication module can output different high and low level signals to the phase shift switching module, so that the phase shift switching module uses DIF communication to output a phase shift signal corresponding to the tracking receiver according to different high and low level signals, so as to complete the hot backup switching between the two tracking receivers, and avoid affecting the system tracking task after a tracking receiver fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a module including a tracking receiver in a tracking system in the prior art of Embodiment 1 of the utility model;

[0015] Figure 2 This is a module schematic diagram of a tracking and receiving system based on phase shift switching according to Example 1 of the utility model. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the implementation methods of the present invention are not limited thereto.

[0017] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] The present invention is described in detail below with reference to the accompanying drawings and in combination with embodiments:

[0020] Example 1

[0021] Because, in the prior art, the tracking subsystem is composed of an antenna feed, a phase-shift synthesis module, a tracking down-converter, a tracking receiver, and a DIF communication control module. The tracking receiver is connected to the DIF communication control module, and the DIF communication control module is connected to the phase-shift synthesis module, that is, DIF communication is adopted between the tracking receiver and the phase-shift synthesis module, so that the tracking receiver tracks the phase-shift signal generated by the phase-shift synthesis module, and the antenna feed is connected to the signal input end of the phase-shift synthesis module, the signal output end of the phase-shift synthesis module is connected to the signal input end of the tracking down-converter, and the signal output end of the tracking down-converter is connected to the signal input end of the tracking receiver, the antenna feed is used to provide a sum signal and a difference signal to the phase-shift synthesis module, the phase-shift synthesis module is used to combine the sum signal and the difference signal, and the tracking down-converter is used to convert the combined signal to output it to the tracking receiver, such as Figure 1The DIF communication control module is used to output a phase-shifted signal corresponding to the tracking receiver to the phase-shifted synthesis module. Only when the phase-shifted synthesis module receives the phase-shifted signal can it track the tracking receiver, thereby outputting the combined signal to the tracking receiver.

[0022] When two tracking receivers simultaneously use DIF communication to output corresponding phase-shifted signals to the phase-shift synthesis module, at this time, one phase-shift synthesis module receives two different phase-shifted signals. The phase-shift synthesis module cannot simultaneously perform phase-shift control on the two tracking receivers. The phase-shift synthesis module cannot process two different phase-shifted signals, resulting in tracking errors.

[0023] Therefore, in the existing tracking subsystem, one tracking receiver is generally used. However, when there is only one tracking receiver in the system to perform the system tracking task, if the tracking receiver fails, it cannot be processed in time, resulting in the tracking task of the system being affected.

[0024] In order to solve the above problems, the utility model provides a tracking and receiving system based on phase shift switching, which adopts two tracking receivers. The two tracking receivers are connected to a phase shift switching module through a TTL communication control module, and the phase shift switching module is connected to a phase shift synthesis module through a DIF communication control module. The phase shift synthesis module can be switched to a corresponding tracking receiver under the control of the TTL communication module, so that the phase shift signal corresponding to the tracking receiver is transmitted to the phase shift synthesis module through the DIF communication of the phase shift switching module. In this way, the phase shift switching module only receives one phase shift signal, and the phase shift switching module can track the corresponding tracking receiver. The hot backup switching between the two tracking receivers is completed by switching connection to avoid affecting the system tracking task after a tracking receiver fails.

[0025] Specifically, Figure 2 As shown, a tracking receiving system based on phase shift switching includes a tracking receiver A, a tracking receiver B, a phase shift switching module, and a phase shift synthesis module. The tracking receiver A and the tracking receiver B are both connected to the controlled end of the phase shift switching module using TTL communication, the phase shift switching module is connected to the controlled end of the phase shift synthesis module using DIF communication, the signal output end of the phase shift synthesis module is connected to the signal input end of the phase shift switching module, and the signal output end of the phase shift switching module is switched between the input end of the tracking receiver A and the input end of the tracking receiver B.

[0026] Preferably, the tracking receiver A and tracking receiver B respectively use TTL communication to output corresponding high and low level signals to the phase shift switching module. After receiving the corresponding high and low level signals, the phase shift switching module outputs the corresponding phase shift signal to the phase shift synthesis module through DIF communication, and switches the signal input end of the phase shift switching module to the corresponding output end of tracking receiver A or the output end of tracking receiver B.

[0027] Preferably, a host computer is also included, and the controlled ends of the tracking receiver A and the tracking receiver B are connected to the host computer. Under the control of the host computer, the tracking receiver A and the tracking receiver B respectively use TTL communication to output corresponding high and low level signals to the phase shift switching module.

[0028] Preferably, a tracking down converter is further included, the signal output end of the phase-shift synthesis module is connected to the input end of the tracking down converter, and the output end of the tracking down converter is connected to the signal input end of the phase-shift switching module.

[0029] Preferably, it also includes an antenna feed, which is connected to the signal input end of the phase shift synthesis module, and the antenna feed is used to output the sum signal and the difference signal to the phase shift synthesis module. The phase shift synthesis module is used to combine the sum signal and the difference signal, and output the combined signal from the signal output end.

[0030] Preferably, it further comprises a DIF communication control module, the phase shift switching module is connected to the DIF communication control module, and the DIF communication control module is connected to the controlled end of the phase shift synthesis module.

[0031] Preferably, it also includes a TTL communication module A and a TTL communication module B, the tracking receiver A is connected to the TTL communication module A, the tracking receiver B is connected to the TTL communication module B, and the TTL communication module A and the TTL communication module B are both connected to the controlled end of the phase shift switching module.

[0032] Based on the above principles, the utility model is further described:

[0033] The utility model is mainly because in the prior art, DIF communication is adopted between the tracking receiver and the phase-shift synthesis module in the tracking system, so there can only be one tracking receiver in the tracking system. Based on this, the tracking system cannot handle the failure in time after the tracking receiver fails, resulting in the tracking system being unable to achieve the tracking task.

[0034] Therefore, the utility model adds a tracking receiver in the system, and adds a corresponding phase-shift switching module in the connection route between the tracking receiver and the phase-shift synthesis module using DIF communication, and connects two tracking receivers with a phase-shift switching module. TTL communication is used between the tracking receiver and the phase-shift switching module, so that the phase-shift switching module can switch the connection between the two tracking receivers through TTL communication, and the phase-shift switching module is connected to the phase-shift synthesis module through DIF, so that the phase-shift synthesis module always receives a phase-shift signal and tracks the corresponding tracking receiver according to the phase-shift signal.

[0035] Among them, the control method of controlling the phase-shift switching module to switch the connection between the two tracking receivers through TTL communication is a conventional technical means. Because TTL communication is a serial communication method based on TTL logic level, which is widely used in computer networks, electronic equipment and other fields, and the TTL logic level refers to the two level states in the TTL circuit, namely high level and low level, so that TTL communication can use the change of high and low levels to represent the transmission and reception of digital information, then the tracking receiver can transmit the corresponding high and low level signals to the phase-shift switching module through TTL communication, so that the phase-shift switching module switches the connection according to the received high and low level signals.

[0036] In this embodiment, the tracking receiver A can be controlled by the host computer as the main receiver and the tracking receiver B can be controlled as the backup receiver. Then, in normal operation, the tracking receiver A is in an online state and the tracking receiver B is in an offline state. When the tracking receiver A is in an online state, TTL is a high position, that is, the tracking receiver A transmits a high-level signal to the phase shift switching module through TTL communication. At the same time, when the tracking receiver B is in an offline state, TTL is a low position, that is, the tracking receiver B transmits a low-level signal to the phase shift switching module through TTL communication. Therefore, the phase shift switching module receives the corresponding high and low level signals, switches the signal input end to the output end of the tracking receiver A according to the high-level signal switching, and the phase shift switching module sends a phase shift signal corresponding to the tracking receiver A to the phase shift synthesis module through DIF communication, so that the phase shift synthesis module tracks the tracking receiver A.

[0037] When the phase-shift synthesis module is tracking the tracking receiver A, it receives the sum signal and the difference signal sent by the antenna feed source, and performs signal merging processing on them. This signal processing is a conventional technical means in this field and will not be repeated here. The merged signal is tracked to the tracking downconverter, and the merged signal is transmitted to the signal input end of the phase-shift switching module. Since the signal input end of the phase-shift switching module is connected to the tracking receiver A, the merged signal is transmitted to the tracking receiver A to complete the tracking task.

[0038] When tracking receiver A fails, the two tracking receivers can be controlled by the host computer to output corresponding high and low level signals through the corresponding TTL communication control modules. When the phase shift switching module receives opposite high and low level signals, it will switch the connection between the two tracking receivers to complete the switching of the phase shift signal.

[0039] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A tracking and receiving system based on phase shift switching, characterized in that: The invention comprises a tracking receiver A, a tracking receiver B, a phase shift switching module and a phase shift synthesis module. The tracking receiver A and the tracking receiver B are both connected to the controlled end of the phase shift switching module by TTL communication. The phase shift switching module is connected to the controlled end of the phase shift synthesis module by DIF communication. The signal output end of the phase shift synthesis module is connected to the signal input end of the phase shift switching module. The signal output end of the phase shift switching module is switched between the input end of the tracking receiver A and the input end of the tracking receiver B.

2. A tracking and receiving system based on phase shift switching according to claim 1, characterized in that: The tracking receiver A and tracking receiver B respectively use TTL communication to output corresponding high and low level signals to the phase shift switching module. After receiving the corresponding high and low level signals, the phase shift switching module outputs the corresponding phase shift signal to the phase shift synthesis module through DIF communication, and switches the signal input end of the phase shift switching module to the corresponding output end of the tracking receiver A or the output end of the tracking receiver B.

3. A tracking and receiving system based on phase shift switching according to claim 2, characterized in that: It also includes a host computer, and the controlled ends of the tracking receiver A and the tracking receiver B are connected to the host computer. Under the control of the host computer, the tracking receiver A and the tracking receiver B respectively use TTL communication to output corresponding high and low level signals to the phase shift switching module.

4. A tracking and receiving system based on phase shift switching according to claim 1, characterized in that: It also includes a tracking down converter, the signal output end of the phase-shift synthesis module is connected to the input end of the tracking down converter, and the output end of the tracking down converter is connected to the signal input end of the phase-shift switching module.

5. The tracking and receiving system based on phase shift switching according to claim 1 is characterized in that: It also includes an antenna feed, which is connected to the signal input end of the phase shift synthesis module. The antenna feed is used to output a sum signal and a difference signal to the phase shift synthesis module. The phase shift synthesis module is used to combine the sum signal and the difference signal, and output the combined signal from the signal output end.

6. A tracking and receiving system based on phase shift switching according to claim 1, characterized in that: It also includes a DIF communication control module, the phase shift switching module is connected to the DIF communication control module, and the DIF communication control module is connected to the controlled end of the phase shift synthesis module.

7. The tracking and receiving system based on phase shift switching according to claim 1 is characterized in that: It also includes a TTL communication module A and a TTL communication module B. The tracking receiver A is connected to the TTL communication module A, and the tracking receiver B is connected to the TTL communication module B. The TTL communication module A and the TTL communication module B are both connected to the signal input end of the phase shift switching module.

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