LFM的例句大全

Joint Estimation of Doppler and Multipath Time Delay of Overlapping Echoes for LFM Pulse Radar

LFM脉冲雷达回波Doppler与多径时延的联合估计

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Suppression of Time-varying Amplitude LFM Interference in DSSS Communication

直扩通信中时变幅度LFM干扰的抑制

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The beat signal model of the stationary, uniform motion and accelerated motion target is sinusoid, Linear Frequency-Modulated ( LFM) signal and polynomial-phase signal ( PPS) respectively.

静止、匀速运动和加速运动三类目标分别对应着正弦信号、线性调频（LFM）信号和多项式相位信号（PPS）三种差频信号模型。

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Hough transform is a usual method for the image edge detection. It has been used in the underwater acoustic field for estimation combined with time-frequency analysis, exemplified by estimate the frequency slope of the LFM signal with wigner-Hough transform.

Hough变换是一种用于边缘检测的图像处理手段，在水声信号处理中已被用来与时频分析手段联合起来对信号进行估计，例如Wigner-Hough变换利用对直线的Hough变换来估计线性调频信号斜率等。

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firstly, we use the radon-ambiguity transform to get the linear kernel function, which can remove the cross terms of multi-lfm signals and some part of noise in the ambiguity domain. then we use the two-dimensional fourier transform to get the new time frequency representation.

首先由Radon-Ambiguity变换设计出线状核函数，以去除噪声和多线性调频信号之间的交叉项在模糊域中的影响，再通过二维傅立叶变换得到一种新的时频表示。

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This paper describes a pulse compressor implementation with DSP for small Time Bandwidth ( TB) product Linear Frequency Modulation ( LFM) waveform.

用DSP实现小TB积线性调频数字脉压，线性调频信号用数字方法产生。

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Software includes the measurement of conventional pulse, LFM pulse, phase encoding parameters and PRI de-interleaving.

软件包括常规脉冲、线性调频脉冲、相位编码等雷达参数的测量、分析和PRI分选等主要模块。

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A detection method for LFM signals based on TRM and Wigner-Hough transform

一种基于时间反转镜和Wigner-Hough变换的线性调频信号检测方法

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Parameters estimation for LFM radar signal based on reassigned wavelet-Radon transform

基于重排小波-Radon变换的LFM雷达信号参数估计

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The instantaneous frequency estimation problems of single-component LFM signal are studied.

研究了单分量LFM信号的瞬时频率估计问题。

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The detection problems of single-component linear frequency modulation ( LFM) signal are studied.

研究了单分量线性调频（LFM）信号的检测问题。

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By using two steps search method to detect single-component LFM signal in order to obtain a clear detection result and reduce the computational cost.

在单分量LFM信号检测中，为获得明显的检测效果及减少搜索过程的计算量，采用了两级搜索的方法。

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The main work and achievements of this dissertation are as follows: 1. Detecting the single-component and multi-component LFM signals based on FRFT.

本文的主要工作和成果如下：1.将FRFT应用于单分量及多分量LFM信号的检测中。

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A algorithm for DOA estimation of coherent wideband LFM signals based on the FRFT using uniform circular array ( UCA) is proposed.

本文给出FRF域基于均匀圆阵的宽带相干LFM信号波达方向估计算法。

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The Generation of WB LFM Signal by Direct Digital Waveform Synthesis Based on FPGA

基于FPGA的直接数字波形合成宽带信号源的设计与实现

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With the LFM pulse frame synchronization method, the performance of UWA communication system based on DPSK is apparently improved.

同时运用线性调频脉冲帧同步法，改善了基于差分相移键控的水声数字通信系统的性能。

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A new kind of bilinear time-frequency distribution-adaptive Gaussian-kernel distribution ( AGD) is proposed according to multi-component linear frequency-modulated ( LFM) signals, and a new efficient kernel estimation method is presented.

该文针对多分量线性调频信号，提出了一种新的自适应核时频分布-自适应高斯核分布，并给出了有效的核函数估计准则；

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Mixed LFM Signal Detection Based on Independent Component Analysis

基于独立成分分析的混合LFM信号检测

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LFM Fuze launch the same range of frequency modulation continuous wave signal, and use the substract frequency of the emission signal and the return siganl to determine the distance between the shells with the target.

调频无线电引信发射调频等幅连续波信号，其发射信号的频率按调制信号规律变化，利用回波信号与发射信号的频率差确定弹与目标间的距离。

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Based on the theory of the matched filter, the bandwidth-duration product of the signal can be made greater than one, by the way of using the pulse width to add to the method of LFM signal band.

在匹配滤波器理论基础上，使用在宽脉冲内附加线性调频的方法可以扩展信号的频带，使信号的时宽带宽积大于一。

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