Chirp signal is a kind of pulse - compressed signal with large time - bandwidth products achieved through linear frequency modulation . it has high resolution in range because of its great bandwidth 线性调频信号是通过线性频率调制获得大的时宽带宽积的一种脉冲压缩信号，具有大的带宽，因此有高的距离分辨力。
In the information environment of radar there are some signals such as regular and binary phase modulated pulse signal and linear frequency modulated signal are used widely 在雷达信号环境中,最常见的信号包括常规脉冲调制信号、脉内二相编码信号以及线性调频信号。对这些信号的载频测量在电子战中具有重要意义。
Lfm signal is a classic pulse compression signal and it is one of the ultra - wideband radar waveforms , there is sophisticated theoretical basis of its generating , receiving and processing 线性调频信号作为一种典型的脉压信号,同时也是超宽带雷达调制波形中的一种,其产生和接收处理已具备了较为成熟的理论研究。
In order to get more information of radar target in the frequency domain , a step lfm system is adopted to measure target characteristics according to the concept of uwb 摘要为获取雷达目标丰富的频域信息，从超宽带雷达信号的概念出发，提出采用步进线性调频超宽带体制的目标特性测量方法，阐述了目标特性测量的基本原理。
That noise fm signal emalates tv sound fm signal researchs above two question about correlative detection and restrainning sidelobe . the research ' s result is compared with linear fm emulational research ' s 用噪声调频信号对电视伴音调频信号进行仿真研究上述提到的相关检测和旁瓣抑制问题，并与线性调频信号仿真研究相比较。
Lfmcw echo is modulated by doppler frequency . according to the characteristic , moving targets with different ambiguous velocities could be classified via mtd , but the range - velocity coupling problem still exists 线性调频连续波雷达回波同脉冲雷达一样受到了多普勒频率的调制，通过动目标检测( mtd )可抑制杂波，检测运动目标。
Many new uwb radar signal parameter estimation algorithms based on sub - nyquist sampling have been deeply and widely studied in this dissertation . linear frequency modulated ( lfm ) signal is concerned here 本论文针对超宽带雷达信号中主要的信号形式?线性调频信号在低信噪比和欠采样的条件下的参数估计进行了分析、仿真和探讨。
Uwb radar ( uwbr ) antenna is studied . the radar equation is developed to fit in with uwb sar . the uwb sar system parameters and its configuration are proposed 分析了几种常用的超宽带信号形式，阐述了线性调频信号的优点；研究了uwbr天线的特性；提出了适于uwbsar的雷达方程；进行了uwbsar系统参数论证；分析了uwbsar的系统构成。
In this thesis , aimed at the above - mentioned two - side problems , based on analyzing the theory of lfmcw radar ranging deeply , we implement the work of intermediate frequency signal processing 本论文针对上述两方面的问题,在深入分析lfmcw雷达测距理论基础上,在工程上完成了一部8mm毫米波线性调频连续波测距雷达的中频信号处理工作。
The system employs multicarrier modulation ( mcm ) technique as the modulation method , and linear frequency modulation ( lfm ) signal as the synchronization signal and digital signal processor ( dsp ) as the hardware ' s core chip 该系统选用多载波调制技术进行调制，选用线性调频信号为其同步信号，选择数字信号处理器为硬件核心芯片。
