现代计算机（专业版）
現代計算機（專業版）
현대계산궤（전업판）
MODERN COMPUTER
2015年
6期
3-8
,共6页
微多普勒时频谱%压缩感知%随机扰动%加窗压缩感知
微多普勒時頻譜%壓縮感知%隨機擾動%加窗壓縮感知
미다보륵시빈보%압축감지%수궤우동%가창압축감지
Micro-Doppler Time-Frequency Spectrum%Compressed Sensing%Random Perturbation%Sliding Window Compressive Sensing
给出一种新的利用压缩感知来估计自旋目标周期及平动速度的算法。该算法的基本原理是雷达在随机的时刻序列发射脉冲信号，采集匹配滤波后的信号值，通过对信号值加滑动窗，利用加窗压缩感知的方法提取出目标的微多普勒时频谱，再次利用压缩感知算法提取出目标的旋转周期，进而提取出目标的残余平动速度，具有很高的应用价值。
給齣一種新的利用壓縮感知來估計自鏇目標週期及平動速度的算法。該算法的基本原理是雷達在隨機的時刻序列髮射脈遲信號，採集匹配濾波後的信號值，通過對信號值加滑動窗，利用加窗壓縮感知的方法提取齣目標的微多普勒時頻譜，再次利用壓縮感知算法提取齣目標的鏇轉週期，進而提取齣目標的殘餘平動速度，具有很高的應用價值。
급출일충신적이용압축감지래고계자선목표주기급평동속도적산법。해산법적기본원리시뢰체재수궤적시각서렬발사맥충신호，채집필배려파후적신호치，통과대신호치가활동창，이용가창압축감지적방법제취출목표적미다보륵시빈보，재차이용압축감지산법제취출목표적선전주기，진이제취출목표적잔여평동속도，구유흔고적응용개치。
Proposes a novel method based on CS theory to estimate the translational velocity and cycle of spin target. Transmits a pulse train with the random and sparse transmitting time and obtains the received signals after matched filtering. The signal is multiplied by a sliding win-dow and the unambiguous micro-Doppler time-frequency spectrum can be obtained based on the sliding window compressive sensing. By the compressed sensing, estimates the circle and translational velocity of spin target. This method has very high practical value.
