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- In order to obtain high range resolution, the Chirp signal is used as subpulse to form stepped frequency modulated radar signal. 摘要为了获得高距离分辨率,将线性调频信号作为子脉冲构成调频步进雷达信号。
- 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。
- The modulator output is processed by an on-chip digital filter. 调制器输出由片内数字滤波器处理。
- The Linear Frequency Modulated(LFM) signal is a popular pulse compression radar signal. 摘要 线性调频信号是雷达中常采用的一种脉冲压缩信号。
- Stepless frequency modulated speed,low noise,low vibration driving and smooth running. 速度无级调速,低噪音,低振动传动,运行平稳。
- Output channel 3 or channel 4 of radio frequency modulator can be selected by up/down toggle switch. 射频调制器的输出频道可以通过上/下拨动开关选择3频道/4频道。
- 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(MSK)技术与调频超短波无线电技术相结合传输信号的方法。
- 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 (MSK)技术与调频超短波无线电技术相结合传输信号的方法。
- There is a growing interest in the Frequency Modulated Continuous Wave (FM-CW) SAR for its 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、低成本及分辨率高等特点越来越受到关注。
- A low-pass programmable digital filter with adjustable filter cutoff, output rate, and settling time processes the modulator output. 低通道可编程的数字式滤波器与可调整的过滤器开关,的输出率和沉淀时间过程调制器的输出量。
- Frequency modulation does not allow static to creep in. 频率调制不允许静电干扰混入。
- The modulator output is processed by two Finite Impulse Response (FIR) digital filters in series. 调制器输出由两个串联的有限脉冲响应(FIR)数字滤波器处理。
- A microvibration sensor based on the optical feedback effect in a direct frequency modulated laser diode is developed for optical detection of muscle vibration. 摘要为了实现肌肉震颤的光学探测,本文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微振动传感器。
- The modulator output is processed by a finite impulse response (FIR) digital filter. 调制器输出由有限脉冲响应(FIR)数字滤波器处理。
- In the FMCW(frequency modulated continuous wave) liquid level measuring system,the key to measure the distance is to detect the frequency of the sinusoidal echo beat signal. 在FMCW(调频连续波)微波液位测量系统中,回波差拍正弦信号的频率检测是实现距离测量的关键。
- 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。
- The modulator output is processed by a low pass programmable digital filter, allowing adjustment of filter cutoff, output rate and settling time. 调制器输出由低通可编程数字滤波器处理,滤波器截止、输出速率和建立时间可通过编程进行调整。
- Frequency modulation is not possible with polychromatic light. 多色光不可能调制频率。
- The analysis and simulation for Linear Frequency Modulated (LFM) pulse compression signal of radar, it is very significant in the field of radar signal simulation. 摘要对雷达线性调频脉冲压缩信号进行分析以及仿真,在雷达信号模拟领域中是非常重要的。
- 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。