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- Multicomponent LFM signals 多分量LFM信号
- Study the pulse compression performance in range imaging，simulate the pulse compression processing of LFM signals and realize it on HHPC. 在距离向的脉冲压缩处理性能研究过程中，对LFM信号脉冲压缩过程进行了仿真，并在HHPC上实现。
- Based on the features of ambiguity function of LFM signal, a new adaptive kernel is given. 然后，基于线性调频信号模糊度函数特征，提出了一种新的自适应核函数。
- Frequency modulation and amplitude compensation of interruptedly received LFM signals are studied to precede a false target group based on interrupted T/R jamming system. 该文基于间歇收发干扰体制,研究了通过对间歇采样LFM信号的频率调制和幅度补偿,产生导前假目标群问题。
- This paper proposes a novel spectrum-compressed digital receiving method using Laguerre transformation for LFM signal. 该文提出了一种新的宽带线性调频(LFM)信号频谱压缩数字接收方法。
- 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。
- The LFM signal has a high resolution of range and speed,as well as low probability of intercept. LFM信号具有更高的距离、速度分辨率,以及更好的低截获概率特性。
- LFM signal will likely become the main signal form in underwater target strength broadband test. 摘要线性调频信号可能将成为水下目标强度宽带测试的一种主要信号形式。
- For the characteristics of the millimeter radar, the LFM signal is used to get larger time-bandwidth. 针对本系统毫米波雷达传感器的特性,采用了线性调频脉冲压缩信号获得大的时宽带宽积;
- By analyzing the fractional Fourier transform (FRFT) result of LFM signal, a method of excising LFM interference in fractal domain was put forward. 通过对LFM干扰信号分数阶傅立叶变换计算结果的分析，提出在分数阶域进行LFM干扰抑制的方法；
- This paper puts forword a method to generate the complex modulation LFM signal using the slope wobble in different Pulse Repetition Interval (PRI). 该文提出利用脉间调频斜率抖动的复杂调制LFM信号，实现对数字储频欺骗干扰的抑制。
- In this paper,the reassigned smoothed pseudo Wigner-Ville distribution is to LFM signal detection.Computer simulation results show its effectivity. 计算机仿真实验结果验证了这两种方法可以有效地抑制交叉项干扰,提高了检测精度。
- Aiming at the characteristic of LFM radar signal,this paper analyzes the thoery of distilling instant frequency of LFM signal based on the means of instant phase firstly. 文中针对线性调频雷达信号的特点,首先分析了基于瞬时相位法的线性调频信号瞬时频率提取原理,其次通过确定模糊值恢复了相位序列,实现提取线性调频信号的瞬时频率。
- A new digital method for LFM signal generated is proposed.The LFM signal can be generated by means of two second-order infinite impulse response filters（IIR） computing. 提出了一种新的线性调频信号数字产生方法，该方法是利用两个二阶无限脉冲响应滤波器进行计算产生信号；
- LFM signal detection and parameter estimation is deduced.At last, wavelet transform of LFM signal is presented, and LFM signal detection based on wavelet spectrum is studied. 线性调频信号的检测与参数估计是一个广泛受到关注的问题,分析了线调频信号的小波变换,并提出了基于小波谱的线性调频信号检测的算法。
- In ELINT the Radon-Wigner transform is the main method for extracting the parameters of the LFM signal such as a slope, which, however, needs a large amount of computational load and time. 在电子侦察(ELINT)中对于线性调频信号的参数提取目前主要有Radon-Wigner变换,而这种算法要求运算量比较大,运算时间也比较长。
- Because the modulated form of the LFM signal in different PRI is not known to the jammer, which destroies the correlation of the jamming signal and the SAR transmitted signal in the current PRI. 由于雷达信号调制形式干扰方未知，降低了干扰信号和当前雷达发射脉冲信号之间的相关性。
- The research object is ultra-wideband LFM signal in low signal-to-noise ratio In this thesis, Study ultrawideband radar signal detection and parameter estimation, and obtain some valuable results. 本文以低信噪比条件下的超宽带LFM信号为研究对象,系统地分析了如何对该类信号进行检测与参数估计,取得了一些有价值的成果。
- Based on the theory of ISAR, using simple maths methods, the method of using arbitrary times polynomial simulation for the nonlinearity testing of LFM signal is studied for the first time. 从基本的ISAR成像知识出发，运用简单的数学方法，首次对用任意次曲线来模拟扫频非线性曲线的方法进行了研究。
- The LFM signal enhancement technique based on STFT, narrow band jamming restrain technique based on time-frequency peak filtering and wide band LFM detecting technique are put forward. 研究了低信噪比强窄带干扰条件下的LFM信号检测技术,提出了基于短时傅里叶变换(STFT)的线性调频(LFM)信号增强技术、基于时频峰值滤波的强窄带干扰抑制技术和基于一维搜索的宽带LFM信号检测技术。
