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Aiming at the influence of the target movement acquired by the frequency-modulated stepping radar on composite range profiles, a fast velocity estimation method is proposed.

针对调频步进雷达目标运动对合成距离像的影响，提出了一种快速的速度估计方法。

High Frame Rate Ultrasonic Imaging System Based-on Linear Frequency-Modulated Signal.

基于线性调频信号的高帧率超声成像系统。

Radar ; linear ; frequency-modulated ; pulse compression ; matching filter

雷达；线性；调频；脉冲压缩；匹配滤波器

Analysis the effects of the frequency response difference between the sensor channels on the performance of the radar with linear frequency-modulated and pulse compression system.

分析了线性调频脉压体制下通道频率特性差异对雷达性能的影响。

Also called FM (Frequency-modulated) screening.

亦称调频式加网。

The simulation for the multi-component linear frequency-modulated signals demonstrates the improvement of classification performance compared with time-frequency analysis only.

以分类误差最小为目标，自适应调整支撑矢量核和时频表示核的参数，并对SAR运动目标回波模型——线性调频信号进行仿真实验，实验结果表明这一方法提高了分类精度，改善了分类性能。

The objective of this thesis mainly focuses on the discussion of deviation in topographic height measurement measured by the frequency-modulated atomic force microscopy as the electrostatic force is applied or not applied.

本论文主要是探讨静电力对频率调制原子力显微镜表面高度量测时所造成的误差。

In Chapter 1, it introduces atomic force microscopy as a widely used tool in surface measurement and how electrostatic force effects the deviation in measurement using the frequency-modulated atomic force microscopy during the research.

第一章先介绍已被广泛应用在表面量测的重要工具─原子力显微镜，再介绍先前文献对静电力造成频率调制原子力显微镜量测误差之研究。

However, relative very few studies has done about how did the IC neurons of mouse respond to frequency-modulated sweeps.

在其他动物如回声定位蝙蝠、大鼠等下丘已有初步研究，并发现很多神经元都能够对这类复杂声有效编码。

Using time frequency analysis and image processing the modulation of linear frequency-modulated signal is analyzed and using relatively non-ambiguity phase revaluation technique, the modulation identification of phase-coded signal is also studied.

脉内调制特征中采用了时频分析方法和图像处理的方法分析了线性调频信号，采用相对相位无模糊的方法分析了相位编码信号。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。