线性调频脉冲是现代雷达系统中常用的一种重要的大时宽-带宽积信号。
LFM (Linear Frequency Modulation) pulse is a kind of important large time-bandwidth product signal and commonly used in modern radar system.
本文分析了线性调频脉冲压缩雷达的工作原理、移频干扰原理和卷积干扰原理。
In this paper the working principle of the LFM pulse compression radar, and the principles of shift frequency jamming and convolution jamming are analyzed.
介绍了线性调频脉冲信号高分辨测距的两种基本方法:时域压缩测距和频域压缩测距。
Two basic methods of high resolution range measurement applying LFM pulses are introduced: compression in time domain and compression in frequency domain.
同时运用线性调频脉冲帧同步法,改善了基于差分相移键控的水声数字通信系统的性能。
With the LFM pulse frame synchronization method, the performance of UWA communication system based on DPSK is apparently improved.
在现代雷达中,得到广泛应用的线性调频脉冲压缩信号的雷达距离数据递推器公式还未建立。
The radar range recursion filter formula, which is widely used in present radars, for linear frequency modulated pulse compression signal, has not been formed yet.
对雷达测速方法作了较为深入的研究,讨论了双通道测速法和正负斜率线性调频脉冲测速法。
Further study is made on target velocity measurement of radar, double-channel filter method and another one which based on chirp up and chirp down signal are discussed.
以对线性调频脉冲压缩雷达进行干扰为背景,介绍了间歇采样直接转发干扰的原理与干扰效果。
An operational principle of jamming of interrupted-sampling and direct repeater based on digital radio frequency memory was introduced, and its jamming effectiveness was analyzed.
首先对脉冲压缩和线性调频脉冲信号进行了介绍,然后研究了线性调频信号的压缩过程及其压缩方法。
After the introduction of the pulse compression and the LFM, the paper studies the procession of the LFM pulse compression and the methods of it.
根据输入输出脉冲宽度的变化,可识别出线性调频脉冲压缩雷达信号,并测出其参数如脉冲宽度和调频斜率。
According to the change of widthes of the input and output pulses, the chirp signals can be identified and their parameters such as the pulse width and FM slope can be determined.
对线性调频(LFM)信号的三种主要数字产生方法进行分析,提出一种基于波形存储直读法的超宽带线性调频脉冲压缩信号数字产生系统方案。
On the basis of the waveform storage method, a digital generation system scheme for ultra wide-band LFM pulse compression signals is proposed in this paper.
本文讨论了一种识别线性调频脉冲压缩雷达信号和测量其参数的方法。分析了常规雷达信号和线性调频脉冲压缩雷达信号通过SAW色散延迟线后的不同响应。
The paper discusses a method of identifying chirp signals and measuring its parameters and analyses the various responds which the general radar and chirp signals passed the SAW diverse delay.
提出一种由线性调频与二相码组合而成的新型混合脉冲信号,给出了其数学表达式、处理方法及其模糊函数的表达式。
According to a new type of mixed pulse compression signal, this paper discusses the mathematical expression, the way of processing and the expression of the ambiguity function.
本论文讨论了脉冲压缩雷达中两种典型的雷达制式:线性调频雷达和二相编码雷达的干扰。
The jamming of two models of pulse compressed radar, Linear frequency coded radar and bi-phase coded radar, are studied in this dissertation.
阐明了它与单斜率线性调频连续波信号和脉冲LFM信号模糊函数的区别;
The differences between the ambiguity function of STMFCW signal and single slope linear frequency modulation continuous wave signal and pulse LFM signal are also discussed.
通过在特定时刻对DDS生成的信号进行补相,可以使单dds同时生成多个目标的与被测雷达全相参的常规脉冲和线性调频回波信号。
By setting the DDS's offset phase at given time, a single DDS can generate multi-target phase-coherence signals including LFM and general pulse for evaluated radar.
该技术利用线性调频信号(LFM)矩形脉冲的时延值进行时延编码,在接收端采用时延估计技术进行时延解码。
This technique uses different time delay values of the LFM pulse to code the transmitted information, and uses time delay estimation technique to perform decoding.
全文主要分析了线性调频信号(LFM)的频域脉冲压缩方法及MTI/MTD的算法;
In this dissertation the pulse compression performances of linear frequency modulation signals (LFM) and the algorithm of MTI/MTD are analyzed.
脉冲压缩;线性调频信号;相位编码信号;目标回波信号;ADS;
Pulse compression; Linear frequency modulated signal; Phase encoding signal; Echo signal; ADS;
信标信号为线性调频信号和脉冲编码信号的复合信号,其中脉冲编码信号用来表征发射信号序号。
The beacon signal is the reunite signal of linear FM signal and pulse code signal, and the pulse code signal is used as a token of emit signal.
线性调频连续波雷达具有低截获特性,在距离速度解模糊方面比普通的脉冲雷达具有较大优势,一直是雷达研究领域的一个重要课题。
LFMCW radar, with its LPI characteristic and greater advantage over monopulse radar in the ambiguity of range and velocity coupling, has always been an important topic in the radar research field.
它通过发射线性调频(lfm)的脉冲压缩信号实现距离上的高分辨率,利用脉冲之间的多普勒信息获得方位上的高分辨率。
It obtains its high resolution in range by transmitting LFM signal and that in aspect by utilizing the Doppler information among the pulsed echoed signal.
本文研究了线性调频信号脉冲压缩的旁瓣抑制问题,分析了频谱加权法和冲激响应加权法的原理。对两种方法的谱平滑效果。
We study the sidelobe suppression for the pulse compression of the LFM signal, and analyze the spectrum weighting and the impulse response weighting method.
基于线性调频信号、正切调频信号对脉冲压缩系统进行了仿真,并分析得到了有意义的结果。
The simulation, resulted from the pulse compression system with linear FM and Tangent FM signals, is presented and analysed for the useful conclusions in this paper.
这两种方法既可用于多段线性调频连续波探测回波的积累检测,也可用于多个相参脉冲信号的积累与频率估计。
The new methods can be used in both detection of FMCW echo and frequency estimation of correlative pulse train.
线性调频信号是通过线性频率调制获得大的时宽带宽积的一种脉冲压缩信号,具有大的带宽,因此有高的距离分辨力。
Chirp signal is a kind of pulse-compressed signal with large time-bandwidth products achieved through linear frequency modulation. It has high resolution in range because of its great bandwidth.
并以线性调频雷达为干扰对象,将脉冲重叠型和脉冲等间隔取样两种灵巧噪声干扰波形的干扰效果进行了计算机仿真,仿真结果验证了这种干扰的有效性。
Smart noise jamming waveforms of pulse-overlap and pulse-sample are designed. And The PC simulation results validate that the two smart noise jamming waveforms are effective.
并以线性调频雷达为干扰对象,将脉冲重叠型和脉冲等间隔取样两种灵巧噪声干扰波形的干扰效果进行了计算机仿真,仿真结果验证了这种干扰的有效性。
Smart noise jamming waveforms of pulse-overlap and pulse-sample are designed. And The PC simulation results validate that the two smart noise jamming waveforms are effective.
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