Based on linear frequency modulation continuous wave (FMCW) technique, we have developed a distance measurement method for non contact and non integrating error measurement.
给出一种以频率调制连续波（FMCW）技术为基础的进行无接触、无累加误差和较大动态范围距离测量方法。
Secondly, when the operation frequency is given, the dispersion relation between transverse wave vectors were analyzed with various longitudinal wave vector or modulation coefficients.
其次，在给定工作频率的情况下，分析了不同纵向波矢量和不同调制系数时的横向波矢量间布里渊区色散特性。
LFMCW (Linear frequency Modulation continuous wave) radar is a radar system which can get the information of range and velocity through modulating the frequency of continuous wave.
线性调频连续波雷达是一种通过对连续波进行频率调制来获得距离与速度信息的雷达体制。
The frequency modulation effects of positive dipole (unipole) forcing source on LFO is stronger than negative dipole (unipole), and the wave oscillation quicken evidently.
正偶(单)极强迫源对大气低频振荡的调制作用强于负偶(单)极，波动振荡明显加快。
The influence of Kerr effect to close-loop digital resonator fiber optic gyroscope based on square-wave frequency modulation was analyzed in theory.
对采用方波频率调制数字闭环谐振型光纤陀螺中克尔效应的影响进行了深入的理论分析。
Ionospheric frequency modulation causes spreading of the surface clutter in Doppler domain which greatly limits the detection performance of HF sky-wave radars.
电离层频率调制导致地表面杂波的多谱勒展宽，极大地限制了高频天波雷达的目标探测性能。
The low-frequency slot harmonic modulation is used to weaken the end effect or decrease the wave of the thrust, and the many projects are designed or the better project is selected.
采用齿谐波低频调制的设计方法，来削弱直线电机固有的端部效应，使推力的波动减小，并进行了多方案计算，得出比较好的设计方案。
Modulation of light refers to changing parameters of light wave such as amplitude, intensity, and phase, frequency, polarization, etc. to make it carry message.
光辐射的调制是指改变光波振幅、强度、相位或频率、偏振等参数使之携带信息的过程。
This paper describes the principle and realizing technique of measuring distance, for measuring distance fuze with the system of frequency modulation continuous wave (FMCW).
论述了在主动调频连续波(FMCW)体制测距引信中实现精确测距的原理及其实现技术。
The arithmetic formulas for sine wave, linear frequency modulation signal, V-style frequency modulation signal, white noise signal, reverberation signal and echo signal are given by their definition.
根据信号类型的定义，给出了正弦信号、线性调频信号、V型调频信号、白噪声、混响和回波信号的合成公式。
Triangular frequency modulation continuous wave, combined with frequency domain matching, is adopted to solve the problem of range-velocity decoupling in LFMCW radars.
LFMCW雷达检测运动目标，可以采用对称三角lfmcw信号，通过频域配对实现动目标距离、速度的去耦合。
The system adopts direct digital synthetic (DDS) technology for building the sine wave generator to realize continuous regulation of amplitude, frequency and phase modulation.
系统采用直接数字合成（DDS）技术构建正弦波发生器，实现幅值、频率、相位等连续调节；
In frequently used methods, sine wave is used as carrier with amplitude modulation (am), frequency modulation (FM) and phase modulation (PM) implied.
常用的调制方式使用正弦波作为载波并对其进行幅度调制(AM)和角度调制即调频(FM)或调相(PM)。
This thesis introduces a series of low cost high precision Linear Frequency Modulation Continuous Wave (LFMCW) ranging radar.
本文介绍一种低成本、高精度线性调频连续波(LFMCW)测距雷达。
The differences between the ambiguity function of STMFCW signal and single slope linear frequency modulation continuous wave signal and pulse LFM signal are also discussed.
阐明了它与单斜率线性调频连续波信号和脉冲LFM信号模糊函数的区别；
Modulation methods primarily through changes in the rate of sine wave, phase and frequency to transmit information.
调制的方法主要是通过改变正弦波的幅度、相位和频率来传送信息。
In the receiver, through the appropriate RC or LC network can filter out square wave and high frequency modulation signal for simulating the reduction form.
在接收端，通过适当的RC或LC网络可以滤除调制高频方波并将信号还原为模拟形式。
In the receiver, through the appropriate RC or LC network can filter out square wave and high frequency modulation signal for simulating the reduction form.
在接收端，通过适当的RC或LC网络可以滤除调制高频方波并将信号还原为模拟形式。
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