最大熵方法在準連續(xù)波體制中的實現(xiàn)
IMPLEMENTATION OF MAXIMUM ENTROPY METHOD IN QCW
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摘要: 本文分析了最大熵方法的特點和準連續(xù)波體制原理,提出了用于雷達接收機系統(tǒng)的最大熵譜預測外推算法的選擇依據(jù),設(shè)計實現(xiàn)了以TMS320C31為主芯片的核心外推運算單元,完成了對最大熵譜預測外推電路的實時監(jiān)控。信號傳輸速率達到40Mb/s,當定義外推算法為8階時,數(shù)據(jù)吞吐量達到1Mb/s。本文所做工作對準連續(xù)波雷達走向?qū)嶋H應用具有較大意義。
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關(guān)鍵詞:
- 準連續(xù)波; 最大熵算法; 硬件實現(xiàn)
Abstract: 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. -
谷學敏,徐永元.直升機載警戒雷達預研立項理論可行性與工程可實現(xiàn)性論證報告.國防科工委指揮技術(shù)學院,電子部二十七研究所,1994, 4-7, 30-32.[2]吳乃龍,袁素云著.最大熵方法.湖南:湖南科學技術(shù)出版社,1991, 6-7.[3]Schott J P, McClellan J H. Maximum entropy spectrum estimation with uncertainty in correlation measurements. Proc. IEEE, 1983, 170: 1069-1071.[4]楊叔子,吳雅,等著.時間序列分析的工程應用(上冊).武漢:華中理工大學出版社,1994,266-299.[5]TEXAS INSTRUMENTS. TMS320C3X Users Guide. 1992. ch5. ch6. -
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