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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。
- Simulation and analysis of the millimeter wave chirp frequency stepped radar signal with vibration of a helicopter 直升机振动环境下的毫米波调频步进信号仿真分析
- The experimental results show that the method is very effective for both the multicomponent signals consisted of the LFM’s and nonlinear frequency modulation chirp signals. 实验结果表明, 该方法对由多个LFM信号构成的多分量信号和非线性调频信号都非常有效。
- The acoustical transfer function and transfer loss of exhaust muffler can be obtained by using chirp signal as excitation at the inlet of exhaust muffler. 采用适当的人工边界条件来描述排气口外部的半无限空间,通过进气口端正弦扫频激励,可求得出口端的响应,从而获得该排气消声器系统的传递函数和传声损失。
- This paper proved the principles of the frequency stepped phased array radar, and give some implementation method of the frequency stepped phased array radar. 文中提出了频率步进宽带相控阵雷达的基本原理,并给出了几种频率步进相控阵雷达的实现方案。
- Since the frequency stepped radar is a instantaneous narrow band radar with synthesized wideband, it may resolve the bandwidth problem by changing the phase pulse by pulse. 由于频率步进信号是一种瞬时窄带、合成宽带的雷达信号,可以通过脉间配相的改变解决孔径渡越时间、波束指向变化等问题。
- Chirp signal(LFM) is a kind of large time and band product signal used in pulse compression radars.It's advantage is non-sensitive to the Doppler shift of echo signal in the matching filter. 线性调频(LFM)信号是脉冲压缩体制雷达中广泛应用的大时宽带宽积信号,其突出优点是匹配滤波器对回波信号的多普勒频移不敏感。
- Stretch processing is used to demodulate and remodulate the wideband chirp signal, which can reduce the system IF bandwidth, and reduce the complicated degree of the system remarkably. 该模拟器采用去斜率解调和调制处理来降低系统中频处理带宽,从而降低了系统复杂程度。
- chirp frequency stepped signal 调频步进信号
- For the problem of parameter estimation of one dimensional and two dimensional chirp signal in additive colored Gaussian noise, a new method based on fourth-order cumulant is proposed. 摘要针时加性高斯有色噪声背景下的一维、二维线性调频信号的参量佑计问题,引入高阶统计量,提出了一种基于四阶累积量的新方法。
- Due to the conventional integer-N frequency synthesizers suffer from fundamental tradeoffs among frequency step size, loop bandwidth, phase noise, and reference spurs. 由于常见的整数型频率合成器有几个取舍问题,例如频率解析度对于迴路频宽、相位杂讯和参考信号突波的取舍。
- In this paper,the first order approximate model of Doppler frequency is assumed,and an algorithm based on the extended RELAX method is proposed to estimate the parameters of chirp signals. 该文采用上述情形的多普勒频率的分段一阶近似模型,在此基础上,提出一种基于推广RELAX算法的线性调频信号参量估计方法。
- Experiment on acoustic pyrometry is done using the chirp signal, white noise and sine wave respectively in a 300MW boiler in one domestic power plant, through fire hole on furnace wall. 在国内某电厂的300MW机组锅炉上,利用炉墙上的观火孔,分别用扫频信号、白噪声信号和正弦信号进行了冷态下的声学测温试验。
- frequency stepped continuous wave (FSCW) 频率步进连续波
- linearly modulated frequency stepped(LMFS)radar 线性调频步进雷达
- wide-band stepped-frequency chirp signal 宽带调频步进信号
- stepped-frequency chirp signal (SFCS) 调频步进脉冲信号
- linear frequency-stepped chirp signal 线性调频步进信号
- Development of DDS Digital Synthetic Frequency for Chirp Signal Generation 线性调频信号DDS频率合成源的设计与实现
- Enhancing chirp signal based on rotation of time-frequency plane 基于时频面旋转的线性调频信号增强