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Digital tacan receiver

A receiver and two-way connection technology, applied in the field of digital TACAN receivers, can solve the problems of high cost, complex circuit form, large volume, etc., and achieve the effects of improved sensitivity, reliable performance and simple circuit form

Pending Publication Date: 2017-05-17
TIANJIN 764 COMM AIRMANSHIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing TACAN receivers are analog receivers with complex circuit forms, large volume, easy to be interfered by the outside world, and high cost

Method used

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  • Digital tacan receiver

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Effect test

Embodiment Construction

[0006] like figure 1 As shown, the digital TACAN receiver includes an ARM processor, A / D sampling module, FPGA module, comparator, and operational amplifier. The FPGA module is connected to the comparator and operational amplifier through the A / D sampling module, and is bidirectional Connection, the A / D sampling module is bidirectionally connected with the ARM processor.

[0007] In the Tacan receiver, the logarithmic signal is a broadband signal, the signal is not distorted, and has accurate half-amplitude point and rise time. is based on logarithmic signals.

[0008] The video signal enters the A / D sampling module after the comparator, and then enters the FPGA module. After processing, a pulse pair signal 11 with a width of about 4.5 μs is generated. The video signal is a narrow-band signal, and the signal is distorted. However, due to its narrow-band characteristics, It can realize adjacent channel suppression function.

[0009] After the logarithmic signal is amplified ...

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Abstract

The invention relates to a digital tacan receiver. The digital tacan receiver comprises an ARM module, an A / D (analog / digital) sampling module, an FPGA (field programmable gate array) module, a comparator and an operational amplifier. The FPGA module is respectively connected with the comparator and the operational amplifier through the A / D sampling module, the other end of the FPGA module is in bidirectional connection with the ARM module, and the A / D sampling module and the ARM module are in bidirectional connection. The digital tacan receiver has advantages that functions of long echo suppression, short echo suppression, adjacent channel suppression and emission close are achieved, long echo suppression time can be controlled in a range of 50-350 microseconds, switchable setup in short echo suppression is realized, and debugging workload is reduced to 1 / 3 of original workload; in addition, the digital tacan receiver is simple in circuit form, approximately half reduced in size as compared with an original receiver and reliable in performance, and sensitivity is improved by 3dB.

Description

technical field [0001] The invention relates to a TACAN receiver, in particular to a digital TACAN receiver. Background technique [0002] Existing TACAN receivers are analog receivers with complex circuit forms, large volume, easy to be interfered by the outside world, and high cost. Contents of the invention [0003] Technical problems, the present invention provides a digital Tacano receiver, the specific technical solution is, a digital Tacano receiver, including ARM module, A / D sampling module, FPGA module, comparator, operational amplifier, its characteristic That is: the FPGA module is connected to the comparator and the operational amplifier through the A / D sampling module, and is connected to the ARM processor in two directions, and the A / D sampling module is connected to the ARM processor in two directions; the specific signal flow direction is that the video signal is a narrow-band pulse signal. After the comparator enters the A / D sampling module, then enters t...

Claims

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Application Information

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IPC IPC(8): H04L1/16
CPCH04L1/16
Inventor 刘新强徐敬舟任宏伟潘国翠朱金芳
Owner TIANJIN 764 COMM AIRMANSHIP
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