There is a growing interest in the frequency modulated continuous wave (FM-CW) SAR for its advantages such as small cubage, light weight, cost-effective and high resolution.
调频连续波(FM -CW)合成孔径雷达因其体积小、重量轻、成本低及分辨率高等特点越来越受到关注。
Pulse compression; Linear frequency modulated signal; Phase encoding signal; Echo signal; ADS;
脉冲压缩；线性调频信号；相位编码信号；目标回波信号；ADS；
In order to obtain enough bandwidth, HF radars use an irregularly frequency modulated waveform.
为了获得足够的带宽，雷达采用一种非规则频率调制的波形。
Wideband linear frequency modulated signal is a kind of waveform commonly used in ground-based wideband imaging radar.
宽带线性调频信号是地基宽带成像雷达的一种常用波形。
The problem of estimating the parameter of a linear frequency modulated signal embedded in additive noise is considered.
研究了加性噪声中线性调频信号的参数估计问题。
An optoelectronic detection system based on the optical feedback effect in a direct frequency modulated laser diode is developed.
设计并研制了一套基于光反馈效应的直接频率调制激光二极管光电探测系统。
In linear frequency modulated continuous wave (LFM-CW) radar the range resolution is determined by signal bandwidth and linearity.
在线性调频连续波雷达中，距离分辨力由线性调频信号的带宽和线性度等决定。
Cascade multilevel inverter has extensive application in the high voltage variable frequency modulated Speed System for its numerous advantages.
级联式多电平逆变器因其具有众多的优点，在高压变频调速领域中得到广泛应用。
This paper puts forward the signals transmission method combining the MSK technique with the radio technique of frequency modulated ultra short waves.
文章提出了采用最小频移键控(M SK)技术与调频超短波无线电技术相结合传输信号的方法。
The utility model relates to a radio transmitter for low-resistance sound signal, which is used to convert audio signals into frequency modulated signals.
本实用新型是一种将音频信号转换成调频信号的发射装置。
This paper introduces how DDS techniques can be extended to produce frequency modulated(FM)waveforms as well as many types of digitally modulated waveforms.
介绍了如何利用DDS技术来产生调频波形及其他的数字调制波形；
The invention can alternatively be embodied in a frequency modulated radar system, for which each set of signals comprises a sequence of modulation patterns.
本发明可替代地具体实施为频率调制雷达系统，其每组信号包括调制图案的序列。
In this paper, direct platemaking technology is briefed, frequency modulated half tone dot technology (principles, characters and technologics) is emphasized.
本文简述了直接制版技术，着重叙述了调频网点技术，包括原理、特点及技术。
The combination of frequency modulated continuous wave(FMCW)technology and synthetic aperture radar(SAR)techniques is often used to obtain ultra-high resolution.
运动补偿问题是制约机载调频连续波合成孔径雷达（FMCWSAR）实现超高分辨率成像的瓶颈。
This research is aimed to get higher quality functions by use of single- chip processor and way of pulse frequency modulated (PFM) or pulse width modulated (PWM).
用单片机作为控制手段，采用脉冲调频（或调宽）方法，达到了较理想的控制品质。
A method of designing linear frequency modulated (LFM) signals with wide bandwidth and an experimental system that can generate many complex waveforms are presented.
文中不仅给出了宽带线性调频(LFM)信号的具体设计方法，而且给出了可产生多种复杂波形的实验信号产生系统及其主要技术指标。
The linearity of the FMCW signal is an important index to appraise the frequency modulated source. It determines the radar range resolution in the system of radar range.
线性调频连续波(FMCW)信号的线性度是衡量线性调频源质量的一个重要指标，在雷达测距系统中，它决定着雷达的距离分辨率。
Three new aperture methods of speckle photography, one dimensional frequency modulated aperture method crossed aperture method and rotation aperture method are proposed.
本文提出了三种新的散斑照相孔径方法：一维调频孔径法，交叉孔径法和旋转孔径法。
Frequency modulated interrupted continuous wave (FMICW) is chosen as the emphasis of this paper.
本文选择调频中断连续波(FMICW)作为研究重点。
The Linear Frequency Modulated Continuous Wave (LFMCW) Radar has high theoretical range precision and can be used for range tracking.
线性调频连续波(LFMCW)雷达在理论上有很高的测距精度，可用于对目标的距离跟踪。
The paper presents a new radar system based on frequency Modulated Interrupting Continuous Wave (FMICW) by exploiting the hopping frequency technique to improve the capability of HFGWR.
为提高高频地波雷达的抗干扰能力，提出了一种在线性调频中断连续波的基础上基于跳频技术的新高频地波雷达体制。
Frequency modulated continuous wave (FMCW) synthetic aperture radar (SAR) is a light-weight, cost-effective, high-resolution imaging radar, which is suitable for operation on a small flight platform.
调频连续波合成孔径雷达(SAR)是一种新体制的高分辨率成像雷达，具有体积小，重量轻，耗电少，造价低，分辨率高等优点，非常适合小型化sar的应用。
The received signal from target of linear frequency-modulated continues wave (LFMCW) radar is a linear frequency-modulated (LFM) signal.
线性调频连续波雷达对于匀速运动目标的回波经过混频以后还是一个线性调频信号(LFM)。
Frequency of modulated signals is extracted from frequency-modulated signals by using the relationship between the modulus of wavelet transform coefficient and the singular exponent.
利用小波变换系数的模值与信号奇异性指数之间的关系，从调频信号中提取出调制信号的频率。
According to the moving target's echo characteristics acquired by the frequency-modulated stepping radar, the envelope migration is firstly carried out for the subset of the compressed pulse.
根据调频步进雷达运动目标的回波特性，首先对压缩后的子脉冲进行包络平移。
Based on positioning principle of rotating frequency-modulated disk, designing characteristics of patterns for some-model guided sight instrument are studied.
基于旋转调频调制盘的定位原理，研究了某型号瞄准制导仪中调制盘图案的设计特点。
The paper introduces an advanced hydraulic pump/motor tester for mine, combining frequency-modulated control with power recovery techniques, and an engineering application example is given.
介绍采用变频调速和功率回收加载技术的新型矿用液压泵和液压马达试验系统，并有应用实例。
A combination method based on secondary mixing and MTD (Moving target detection) processing is proposed for high-speed targets detection in linear frequency-modulated continuous wave (LFMCW) radar.
针对LFMCW雷达高速运动目标的检测问题，本文提出了一种二次混频与MTD处理相结合的方法。
A combination method based on secondary mixing and MTD (Moving target detection) processing is proposed for high-speed targets detection in linear frequency-modulated continuous wave (LFMCW) radar.
针对LFMCW雷达高速运动目标的检测问题，本文提出了一种二次混频与MTD处理相结合的方法。
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