Signal processing method based on low-cost security radar

Abstract

The invention discloses a signal processing method based on a low-cost security radar. The method comprises the following steps: carrying out channel equalization on all signal channels of a digital array radar; transmitting digital beam forming and receiving digital beam forming; performing frequency domain pulse compression processing on the received signal; carrying out large-point multi-pulseaccumulation by adopting a moving target detection method; and carrying out target detection by adopting a maximum selection constant false alarm detection method to obtain a target trace point. According to the method, the algorithm of the low-power security radar is low in cost, a complete radar signal processing flow is realized on the low-power radar, the accuracy is high, the operation stepsare simple, the real-time performance is good, and the operation cost of low-power radar signal processing is reduced.

Description

technical field [0001] The invention relates to the technical field of civilian security radar, in particular to a signal processing method based on low-cost security radar, which is suitable for target detection of low-cost, low-power, and slow-speed civilian radar. Background technique [0002] With the rise of the UAV industry in recent years, micro-UAVs have been used in many fields such as agricultural production, power track inspection, search and rescue operations, express transportation, and film and television photography. Due to the huge demand for drones, sales of drones are booming. For the blowout development of UAVs, there are more and more black flying targets, which are difficult to detect and control in time, thus bringing huge hidden dangers. [0003] Most of the low-power security radars that have been successfully developed are mostly from military applications, and the cost is relatively high, and the volume and weight are large, making it inconvenient ...

AI Technical Summary

Problems solved by technology

For the blowout development of drones, more and more black flying targets follow, it is difficult to detect and control in time, which brings huge hidden dangers

[0003] Most of the low-power security radars that have been successfully developed are mostly derived from military applications. The cost is relatively high, and the volume and weight are large, which is inconvenient to carry and erect.

However, the currently developed civilian short-range security radar adopts the linear frequency modulation continuous wave system, and the cost is relatively low, but the detection distance is within 200m, resulting in low practicability

Although there are many low-power security radars that have been successfully developed at present, they are faced with the problem of high cost or too short detection distance, and due to the low-cost requirements of low-power security radars, the cost of hardware is also low, so it is required to be in line with it The matching signal processing process is simple, but how to ensure the simplicity, accuracy and real-time performance of low-cost, low-power security radar signal processing has become a major problem for civilian low-cost radars.

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