Linear Frequency Modulation

According to the classic theory of ambiguity function and pulse compression,this paper proposes the ambiguity function and the method of the pulse compression of the high order nonlinear FM signal based on MFT.

根据经典的模糊函数和脉冲压缩理论,提出了基于匹配傅里叶变换的高阶非线性频率调制信号的模糊函数和脉冲压缩的方法,其脉冲压缩效果与线性调频信号接近;并进行了仿真,证明高阶非线性频率调制信号可以被压缩。

The Study on the Method of the Pulse Compression of the High Order Nonlinear FM Radar Signal

高阶非线性频率调制雷达信号的脉冲压缩方法研究

Instantaneous frequency rate estimation of multicomponent two-dimensional chirp signals

多分量二维线性调频信号瞬时频率变化率估计

center frequency

中心频率未调制频率

modulator carrier

调制器载(波)频(率)

modulation frequency ratio

调制频率与载频之比

Hybrid Radar Signal Composed Modulation of Linear Frequency and Barker Phase Coded Modulation

线性调频和巴克码组合调制雷达信号

modulation frequency-carrier ratio

调制频率－载波比率

Application of Changing Chirp Rate Sign in Eliminating Range Blur of SAR

变线性调频斜率符号在合成孔径雷达中的应用

Study of countermeasures to deceptive jamming using random linear modulation frequency ratio SAR

随机线性调频斜率SAR抗欺骗干扰方法研究

LFM Interference Suppression Based on Time-variant Filter

基于时变滤波器的线性调频干扰抑制

Low-power high-linearity sigma-delta modulator for audio applications

低功耗高线性度音频Sigma-Delta调制器

Modulation-Free Laser Frequency Locking by AOM Based on Molecular Absorption Line of CH_4

基于甲烷分子吸收线的声光偏频无调制激光频率锁定

bilinear frequency characteristic displaying instrument

双线性频率特性显示仪

automatic frequency control

自动频率控制自动频率调整

The paper gives the principle of speed adjustment by slip irequency control , and sets up the nonlinear digital model of the induction motor.

文章介绍用转差频率控制速度调整的原理并建立感应电动机非线性数学模型;

modified modified frequency modulation

改进的改进频率调制

Frequency mondulation, which is not possible with polychromatic light.

多色光不可能调制频率。

insertion loss versus frequency characteristic

插入损耗－频率特性曲线