Amplitude-phase consistency compensation system used for radar equipment

Abstract

An amplitude-phase consistency compensation system for radar equipment, used to maintain consistency in the amplitude and phase of the radar three-way channel in the radar system, including: radar equipment, amplitude-phase correction server and display; wherein the amplitude-phase correction server It includes a signal mixing input device, an amplitude-phase consistency corrector and a signal mixing output device; the radar equipment includes a phased array antenna, a digital receiver, a radar amplitude-phase consistency corrector, a radar amplitude-phase superposition analyzer and a radar signal processor. After the radar equipment receives the air interface radar echo through the phased array antenna, it is handed over to the digital receiver for receiving and processing, and then corrected by the radar’s own amplitude-phase consistency corrector, and then corrected again by the amplitude-phase correction server, and then the amplitude-phase The data corrected by the correction server is superimposed on the data corrected by itself, and finally sent to the radar signal processor for analysis and processing. The twice-corrected signal can display the status information of the target object more accurately.

Description

technical field [0001] The invention relates to the radar field, in particular to an amplitude-phase consistency compensation system used among multiple radar devices. Background technique [0002] Radar is an electromagnetic system used to detect and locate targets and is widely used in people's lives, especially in the military field. Radar radiates radio frequency energy into space by itself, and when it encounters an object, the echo signal is reflected by the target object for detection. The reflected energy returned to the radar not only indicates that there is a target in a certain orientation, but also can determine the specific information of the target object, such as orientation and speed, by comparing the difference between the echo signal and the transmitted signal. [0003] The basic working principle of radar is that the transmitter emits a pulse or continuous wave electromagnetic signal, which is emitted into space by the antenna. When the emitted electroma...

AI Technical Summary

Problems solved by technology

In a small number of relatively mature phased array radars, the DSP of the radar itself uses digital automatic strategies and compensation techniques to solve the problem of amplitude-phase consistency; Computational tasks may affect the performance of the radar's own signal processing

Moreover, with the increase of radar processing targets and the emergence of large data volumes in phased array radars, the compensation algorithms that need to be calculated are time-consuming and resource-consuming.

DSP also needs to be responsible for the signal processing of the radar itself, so DSP may have a certain delay in the calculation of the amplitude-phase consistency algorithm, resulting in inaccurate final calculation results

[0007] Now, in the case of a multi-radar system, such as a command post on the battlefield, there are multiple radars to monitor multiple targets in multiple directions at the same time, and the final information is gathered in the command post. If there is a processing delay, it will lead to unreliable foreseeable result

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