Radar signal simulation generation method based on SOC platform

Abstract

The invention discloses a radar signal simulation generation method based on an SOC platform. The method comprises the following steps: constructing a hardware platform based on an SOC platform chip and a DAC structure; calculating control parameters such as pulse width, period and code element number; pulse waveform control parameters are calculated; sending each control parameter to a corresponding part of the FPGA through an AXI bus; a control instruction is issued through the AXI bus, and the DDS is controlled to periodically generate waveform data; the waveform data is output to the DAC and converted into analog signals to be output. According to the system, the performance of the SOC platform chip is fully exerted, control parameter calculation related to floating point operation is put in an ARM embedded system, signal generation with the high real-time requirement is put in an FPGA, communication between the ARM embedded system and the FPGA is achieved through a bus in the SOC platform chip, the overall structure is simpler and more convenient, the influence of external interference is small, and the reliability of the system is improved. And development and maintenance of technicians are facilitated.

Description

technical field [0001] The invention belongs to the technical field of signal control, and in particular relates to the technical field of radar signals, in particular to a radar signal simulation generation method based on an SOC platform. Background technique [0002] Radar plays a very important role in military air defense and air combat systems. It can obtain information such as distance, speed, and angle of targets. In addition, in civilian commercial applications, atmospheric forecasting such as weather forecasting, traffic management, and environmental governance are also used. There are wide applications of radar. In the process of radar development, how to debug the radar effectively has become an important issue. In the process of debugging, it needs to be placed in a real field environment, which has high requirements on test conditions and a long debugging period. Using the radar echo simulator can generate virtual target echoes, modulate various target paramet...

AI Technical Summary

Problems solved by technology

This method is more accurate, but an additional hardware connection between DSP and FPGA is required to complete the communication, and the writing and maintenance of DSP programs will also increase the complexity of the radar signal simulation system

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