Matched signal transformDispersive channelBiorthogonal Fourier transform (BFT), consistent with the matched signal transform (MST), has been introduced to demodulate the M-ray chirp-rate signal which possesses good orthogonality in the BFT domain. Here, we analyze the characteristics of BFT detection ...
Ultrasonic range measurement system send out ultrasonic chirp signal, the reflected echo signal is received by the system and transferred into electrical signal by piezoelectric sensor; time of difference between sending and receiving signal is used to calculate the distance. But there is multi-reflecti...
Adaptive Fractional Fourier Transform Based Chirp Signal Detection and Parameter Estimation基于自适应分数阶傅里叶变换的线性调频信号检测及参数估计分数阶傅里叶变换自适应滤波Chirp信号参数估计An adaptive method of fractional Fourier transform based on Least Mean Square (LMS) algorithm is proposed and is used...
【关键词】线性调频信号,Wiener滤波,Chirp—Fourier变换 中图分类号:TN957文献标识码:A WienerFilteringofLFMSignalBasedonDiscreteChirp?FourierTransform MUXiao—rain0ILinZHUChun—hua (CollegeofInformationEngineering,ZhengzhouUniversityZhengzhou450052) 【Abstract】 ...
We consider a multidimensional parameter space formed by inner products of a parameterizable family of chirp functions with a signal under analysis. We p... S Mann,S Haykin - 《IEEE Transactions on Signal Processing》 被引量: 793发表: 1995年 Improved discrete fractional Fourier transform The fr...
Keywords:Fourier transform;fractional Fourier transform;Chirp signal;Gauss pulse modulated Chirp signal 0引言 Fourier 变换(Fourier Transform,FT)作为最主要的信号分析工具主要用于处理频率不随时间 变化的平稳信号,在时频平面时间轴与频率轴相互垂直,即 Fourier 变换是从时间域旋转 π/2 到频 率域。但是 Fourier...
The Discrete Chirp Fourier Transform (DCFT) proposed recently is an effective technique for chirp signal detection.But it requires some rigorous restrictions on the signal length and parameters.These requirements restrict the application of DCFT.In this paper,the definition of DCFT is modified.No re...
关键词:多进制chirp—rate调制;双正交Fourier变换;多径信道 中图分类号:TN914 文献标志码:A 文章编号:1673—5439(2014)03-0052-06 MultipathChirpSignalDetectionBasedon BiorthogonalFourierTransform YANChao,ZHENGLin ,NINGXiang—yan,QIUHong.bing /1.SchoolofInformationandCommunication,GuilinUniversityofElectronicTechnolo...
of a Taylor series development,the 2-dimensional spectrum can be expanded into power series in terms of range frequency.So that the range inverse Fourier transform can be done with the principle of stationary phase.In the range-Doppler domain,the signal is made factoring in range time.As a ...
Key words: fractional Fourier transform; chirp signal; signal detection 1 引言 Chirp 类信号 是信号 处理 领域 的常 见信 号之 一, 不 管是在自然界的天然信号 中, 还是 人为产 生的 信号中, 都大量存在, 而且, chirp 类信号 可以看 成是频率 时变信 号的一阶近似, 因此, 多分量 chirp 信号的...