最大熵方法在准连续波体制中的实现

IMPLEMENTATION OF MAXIMUM ENTROPY METHOD IN QCW

本文分析了最大熵方法的特点和准连续波体制原理,提出了用于雷达接收机系统的最大熵谱预测外推算法的选择依据,设计实现了以TMS320C31为主芯片的核心外推运算单元,完成了对最大熵谱预测外推电路的实时监控。信号传输速率达到40Mb/s,当定义外推算法为8阶时,数据吞吐量达到1Mb/s。本文所做工作对准连续波雷达走向实际应用具有较大意义。

This paper analyzed the principle of maximum entropy method in QCW radar, advanced the requirements of the maximum entropy spectral estimation in test radar system, designed and implemented the arithmetic unit by C31 chip, and accomplished real-time control for the maximum entropy spectral estimation circuit. Data transmission rate can reach 40Mb/s and data handling capacity arrives at IMb/s when the order of algorithm is 8. Researches this paper made will promote QCW radar from theory to application.