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Phased array radar full-link dynamic range and sensitivity test method and system

A phased array radar and dynamic range technology, applied in radio wave measurement systems, instruments, etc., can solve the problems of cumbersome test process and failure to reflect the overall performance of phased array radar, and achieve simple and convenient test process, convenient test process, The effect of accurate test results

Pending Publication Date: 2021-05-28
HUNAN EASTONE WASHON TECH CO LTD
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Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a method and system for testing the full-link dynamic range and sensitivity of phased array radars, so as to solve the problems that the existing testing methods cannot reflect the overall performance of phased array radars and the testing process is cumbersome. question

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  • Phased array radar full-link dynamic range and sensitivity test method and system
  • Phased array radar full-link dynamic range and sensitivity test method and system
  • Phased array radar full-link dynamic range and sensitivity test method and system

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Embodiment Construction

[0039] The technical solutions in the present invention are clearly and completely described below in combination with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040] Such as figure 2 As shown, a method for testing phased array radar full-link dynamic range and sensitivity provided in this embodiment includes the following steps:

[0041] 1. Generation of input signal

[0042] Use the signal source to generate a radio frequency signal (the radio frequency signal corresponds to the output signal one by one), and use the gain / attenuation adjustable circuit to adjust the power of the radio frequency signal to form radio frequency sig...

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Abstract

The invention discloses a phased array radar full-link dynamic range and sensitivity test method and system. Each input signal is fed to all receiver links through an antenna coupling channel at the same time, which means that each input signal is fed to multiple antenna channels at the same time, and multiple intermediate frequency signals and multiple digital signals correspond to the input signals; the multiple digital signals are processed to finally obtain output signals, the output signals are in one-to-one correspondence with radio frequency signals generated by a signal source, and the overall dynamic range and sensitivity of the phased array radar are obtained through input and output characteristics; and each output signal is formed by digital signals of all channels so that the dynamic range and sensitivity obtained according to the input and output characteristics can reflect the overall performance of the phased array radar. According to the test method, no matter how many antenna channels are, each path of input signal corresponds to one path of output signal, the test is simple, and the test efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of radar testing, and in particular relates to a testing method and system for the full-link dynamic range and sensitivity of a phased array radar. Background technique [0002] Dynamic range and sensitivity are two important indicators reflecting the performance of radar receivers. In the field of weather radar, the method of testing the dynamic range and sensitivity is mainly: injecting signals into the RF front-end of the receiver through the signal source, and testing from the intermediate frequency output of the receiver. With the change of the output signal of the signal source, the signal at the intermediate frequency output of the receiver It will also change. Finally, by calculating the curve of the receiver's intermediate frequency output, find the upper and lower inflection points of 1dB compression, obtain the dynamic range, and obtain the sensitivity according to the requirements of the signal-t...

Claims

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Application Information

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IPC IPC(8): G01S7/40
CPCG01S7/40Y02A90/10
Inventor 杨文蔡康龙王国荣
Owner HUNAN EASTONE WASHON TECH CO LTD
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