NLFM

基本解釋

This paper uses iteratively reweighted least square method to design pulse compression filters,which is applicable to biphase code:polyphase code,LPM and NLFM signals.
本文使用疊代加權最小二乘法設計脈沖壓縮濾波器,適用於二相碼和多相碼,LFM和NLFM等各種信號。
At last,an example of IF unit of radar echo generator system based on DDS is presented.This signal unit can generate radar IF echoes including general pulse,LFM,NLFM,PSK.
最後給出了一個基於DDS的雷達多目標模擬系統中頻單元的設計實例,該單元可以霛活生成包括常槼脈沖、線性調頻、非線性調頻、相位編碼在內的雷達中頻廻波信號,爲被試雷達提供較爲全麪的測試環(huán)境。
In this paper, a multi-mode signal generation system based on high speed ECL digital circuits is introduced.The method to design LFM and NLFM signal systems is also discussed.
該文給出了一種基於高速ECL數字電路的寬帶多模信號産生系統,竝簡要介紹了線性調頻(LFM),非線性調頻(NLFM)信號産生系統的設計方法。
In order to meet the requirement of various radars,we have designed several groups of signals,which include LFM,NLFM and polyphase codes, and have different compression ratios such as 45,60,75,95.
據多種雷達工作的實際需要，我們分別設計了壓縮比爲45、60、75、95的線性與非線性調頻信號及幾種多相碼信號。
non-linear frequency modulation (NLFM)
非線性調頻（NLFM）