Low-altitude target detection broadband radar system based on pitching MIMO and array optimization method

Abstract

The invention discloses a low-altitude target detection broadband radar system based on pitching MIMO and an array optimization method. By combining the frequency phase position comprehensive coding synthetic broadband signal processing technology and the sparse MIMO array signal processing technology, highly efficient and high-precision detection on a low-altitude target can be achieved. The system comprises an antenna branch system, a transceiving assembly branch system, a radio frequency channel branch system, a waveform generation branch system, a frequency synthesizer branch system, a signal processing branch system and a display control terminal branch system. The waveform generation branch system generates six-channel middle-frequency signals through a digital-to-analog conversion DAC playing board card. The middle-frequency signals are in the form of frequency phase position composite coding signals. The six-channel middle-frequency signals enter the frequency synthesizer branch system and pass through the radio frequency channel branch system, the transceiving assembly branch system and ten antenna branch system, so emission wave beams are formed. The transceiving assembly branch system receives echo signals of the target. The echo signals pass through the radio frequency channel branch system, the frequency synthesizer branch system and the signal processing branch system, so an one-dimensional distance image and primary point tracks are obtained.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More

AI Technical Summary

Benefits of technology

This patented new type of radars called PARS (Peak Interval Reduction System) has been developed that combines multiple frequencies into one signal with fewer dimensions than traditional methods like LFW or FMCW systems. These techniques help increase accuracy while reducing cost compared to existing technologies such as Liquid Natural Gas Imaging Radiography(LNIG). Additionally, these radios use advanced algorithms to enhance their performance by generating patterns from data collected through various sensors placed near them. Overall, they provide better target detectability over both lower altitudes and higher altitudes.

Problems solved by technology

The technical problem addressed in this patented text relates to improving radars' ability for identifying small dirt or debris on surfaces that may be hidden behind other things such as buildings during construction work without being detected due to these obstructions.

Images