Simulink-based non-coherent scattering radar echo simulation method and system

Abstract

The invention discloses a simulink-based non-coherent scattering radar echo simulation method and a system. The method comprises the following steps of simulating and emitting a radar pulse signal by a radar pulse emitter in simulink, amplifying the power of the radar pulse signal by a transmitter, increasing the gain of the radar pulse signal by a transmitting antenna, scattering the radar pulse signal by a target simulation ionized layer to form an echo signal, filtering the signal by a receiver analog front end, processing the signal by a receiver digital processing module, outputting a related signal of the echo signal by an output module, and importing the simulated echo signal into the MATLAB for further treatment. According to the invention, the process of sending the radar pulse signal and scattering the outputted radar pulse signal by the ionized layer to form the echo signal can be simulated. Therefore, the scientific research personnel can be helped to get rid of limitation of radar equipment conditions. No expensive radar equipment is required to acquire related radar echo data. Therefore, radar echoes scattered by the ionized layer can be simulated conveniently and flexibly.

Description

technical field [0001] The invention relates to the technical field of radar simulation, in particular to a Simulink-based incoherent scattering radar echo simulation method and system. Background technique [0002] Incoherent scattering radar (ISR) is the most powerful ground-based equipment for detecting the ionosphere. It detects the weak scattering signals generated by the thermal fluctuations of electrons and ions in the ionosphere, which is different from fixed targets such as aircraft, missiles and ships detected by conventional radars. , incoherent scattering radar has many advantages such as strong detection function, many parameters, high precision, good resolution, and large height coverage. However, the radar equipment is bulky and the operating cost is very expensive. Therefore, the main incoherent scattering radars in the world do not start up for a long time, only about two to three months a year. Due to the high cost of using incoherent scatter radar, it has...

AI Technical Summary

Problems solved by technology

However, the radar equipment is bulky and the operating cost is very expensive. Therefore, the main incoherent scattering radars in the world do not start up for a long time, only about two to three months per year.

Due to the high cost of using incoherent scatter radar, it has brought great difficulties for researchers to study the radar echo signals of the ionosphere

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