Search - LINEAR FREQUENCY MODULATION

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【Other resource】 pinlvtiaozhi DL : 0: 在matlab中构成不同频率的调制信号，这些函数都是以fm开头，产生常数、双曲线、线性、抛物线等频率调制信号．-in Matlab, constitute a different frequency modulation signal, these functions are beginning to fm, have a constant, hyperbolic, linear, parabolic and other frequency-modulated signal.
Update : 2008-10-13 Size : 1578 Publisher : 李响
【source in ebook】 pinlvtiaozhi DL : 0: 在matlab中构成不同频率的调制信号，这些函数都是以fm开头，产生常数、双曲线、线性、抛物线等频率调制信号．-in Matlab, constitute a different frequency modulation signal, these functions are beginning to fm, have a constant, hyperbolic, linear, parabolic and other frequency-modulated signal.
Update : 2024-04-29 Size : 1024 Publisher : 李响
【Documents】 moni DL : 0: 现在，常用的模拟乘法器基本上都已实现集成化。而且集成模拟乘法器是一种重要的非线性器件，广泛应用于频率变换、信号处理电路中，构成调制、解调或其它电路。随着集成技术的发展和应用的日益广泛，它已成为继集成运算放大器后最通用的模拟集成电路之一。下面简单介绍一下模拟乘法器-Now, the commonly used analog multiplier have been achieved largely integrated. And integrated analog multiplier is an important non-linear devices, widely used in frequency conversion, signal processing circuits, which constitute modulation, demodulation, or other circuit. With the integration of technology development and application of the increasingly widespread, it has become integrated operational amplifier, following the most common after one of analog integrated circuits. The following is a brief look Analog Multiplier
Update : 2024-04-29 Size : 576512 Publisher : chenfeng
【matlab】 SystemViewexample DL : 0: system view 实例模型包含数字调制QPSK,QAM.RICE衰落信道的仿真数字频率合成器线性移位寄存器 -system view instance of the model consists of digital modulation QPSK, QAM.RICE fading channel simulation of digital frequency synthesizer linear shift register, etc.
Update : 2024-04-29 Size : 1773568 Publisher : mavis
【Other】 pilotbasedchannelestimatininOFDMsystems DL : 0: 频域不同导频密度的信道估计在被研究，并且在高低时延信道其信道估计被固定了导频分配时域。频域信道估计是基于插补，多项式的广义线性模型（或最小二乘法）和维纳滤波（或线性最小均方误差法）的方法。时域的信道估计是用线性插补完成的。我们通过测量在基于克拉克散射模型的瑞利衰落信道上并带有QPSK调制的粗误码率，已经比较了所有这些方案的结果。-Different pilot density in frequency domain channel estimate to research, and its high and low delay channel estimation channel was fixed allocation of time-domain pilot. Frequency domain channel estimation is based on interpolation, polynomial generalized linear model (or least squares) and the Wiener filter (or linear minimum mean square error method) method. Time domain channel estimation is done using linear interpolation. We are by measuring the scattering model based on Clark and Rayleigh fading channels with QPSK modulation bit error rate of crude, has compared the results of all these programs.
Update : 2024-04-29 Size : 2505728 Publisher : 雨儿
【File Format】 200610148701 DL : 0: 一种线性自动补偿的定频调幅式电涡流位移传感器,专利文献，请参考-A linear automatic compensation of the fixed-frequency eddy current displacement sensor amplitude modulation, patent literature, see
Update : 2024-04-29 Size : 478208 Publisher : wanglin
【matlab】 radar-signal DL : 1: 包括相位编码（含二相BPSK和四相QPSK）、线性调频LFM、非线性调频NLFM、脉冲幅度调制(PAM)信号、带噪FSK频率编码信号等的信号源码，是很好的产生各种雷达信号的程序资源。-Including the phase encoding (including two-phase four-phase BPSK and QPSK), LFM LFM, non-linear FM NLFM, pulse amplitude modulation (PAM) signal with noise signals encoded FSK frequency signal source, is to produce a good variety of radar Program resources signals.
Update : 2024-04-29 Size : 10240 Publisher : liujia
【Wavelet】 Analog-modulation-and-demodulation DL : 0: 模拟线性调制系统的调制和解调原理,编写AM、DSB、SSB调制，并画出时域波形和频谱图-Analog modulation and demodulation principle of linear modulation systems, the preparation of AM, DSB, SSB modulation, and draw time-domain waveform and frequency spec
Update : 2024-04-29 Size : 1024 Publisher : 李君
【matlab】 non-linear-distortion DL : 0: Intermodulation or intermodulation distortion (IMD) is the amplitude modulation of signals containing two or more different frequencies in a system with nonlinearities. The intermodulation between each frequency component will form additional signals at frequencies that are not just at harmonic frequencies (integer multiples) of either, but also at the sum and difference frequencies of the original frequencies and at multiples of those sum and difference frequencies.
Update : 2024-04-29 Size : 1024 Publisher : sajjad
【Software Engineering】 fresh DL : 0: this source is for analsys of mainlobe redution in modulation of linear frequency modulated wave with barker code and non linear frequency modulated wave
Update : 2024-04-29 Size : 1024 Publisher : teja krishna oggu
【matlab】 LFM_barker DL : 0: 线性调频和巴克码联合调制的脉压雷达整个信号处理过程，包括信号的产生和调制，解调，MTD，MTI等过程，非常适合毕设仿真！-Linear frequency modulated pulse compression radar and barker code modulation of the signal processing process, including signal generation and modulation and demodulation, MTD, MTI process, such as simulation is very suitable for you
Update : 2024-04-29 Size : 3072 Publisher : bcgkhw
【VHDL-FPGA-Verilog】 lmf DL : 1: 在ISE下，FPGA产生线性调频信号，并且产生信号的参数可调(In ISE, the FPGA generates a linear frequency modulation signal, and the parameters of the signal are adjustable.)
Update : 2024-04-29 Size : 1484800 Publisher : QAQ取啥啥不行
【simulation modeling】 LFM_comp_w DL : 0: 实现线性调频信号，实现对线性调频信号的建模(linear frequency modulation)
Update : 2024-04-29 Size : 28672 Publisher : 菜鸟学习matlab
【matlab】 FM (9) DL : 0: An important feature of FM and PM is that they can provide much better protection to the message against the channel noise as compared to the linear (amplitude) modulation schemes. Also, because of their constant amplitude nature, they can withstand nonlinear distortion and amplitude fading. The price paid to achieve these benefits is the increased bandwidth requirement; that is, the transmission bandwidth of the FM or PM signal with constant amplitude and which can provide noise immunity is much larger than 2W , where W is the highest frequency component present in the message spectrum.
Update : 2024-04-29 Size : 5120 Publisher : Dineshro
【Communication-Mobile】线性调频（LFM）脉冲压缩雷达仿真 DL : 0: 匹配滤波，对线性调频信号进行匹配滤波处理，可以得到目标的特征信息(The matching filter is used to match the linear frequency modulation signal to obtain the characteristic information of the target.)
Update : 2024-04-29 Size : 151552 Publisher : 大佳
【matlab】 Radar_LFM DL : 0: 这是线性调频雷达信号的MATLAB代码，希望有用(linear frequency modulation )
Update : 2024-04-29 Size : 1024 Publisher : 马天鸣
【matlab】 LFM DL : 0: 接收线性调频信号，进行匹配滤波，实现时域卷积和频域卷积并计算两者的误差。(Linear frequency modulation signal is received and matched filtering is carried out to realize time domain convolution and frequency domain convolution and calculate their errors.)
Update : 2024-04-29 Size : 5120 Publisher : sun.smile
【matlab】雷达信号处理基本流程(20181018091102) DL : 0: 去斜处理（宽带的匹配滤波）Stretch方法是针对线性调频信号而提出的，其方法是将输入信号与参考信号（经适当延迟的本振信号，延迟量通常由窄带信号测距结果估计出）混频，则每一个散射点就对应一个混频后的单频分量，对混频输出的信号进行 DFT 处理，即可获得目标的距离像，对参考信号的要求是应具有与输入信号相同的调频斜率。(dechirp matched filter Stretch method is proposed for linear frequency modulation signal. It mixes the input signal with the reference signal (local oscillator signal with appropriate delay, the delay is usually estimated from the result of narrowband signal ranging). Then each scattering point corresponds to a single frequency component after mixing, and DFT is performed on the mixed-frequency output signal. The range profile of the target can be obtained by processing, and the reference signal is required to have the same frequency modulation slope as the input signal.)
Update : 2024-04-29 Size : 757760 Publisher : 爽————
【matlab】 streth DL : 0: 雷达信号去斜处理方法：去斜处理(宽带的匹配滤波)Stretch方法是针对线性调频信号而提出的, 其方法是将输入信号与参考信号 (经适当延迟的本振信号, 延迟量通常由窄带信号测距结果估计出) 混频(Radar signal de-obliquation processing method: The Stretch method of deskew processing (wideband matched filter) is proposed for linear frequency modulation signal. Its method is to mix the input signal with the reference signal (local oscillator signal with appropriate delay, the delay is usually estimated by narrowband signal ranging result))
Update : 2024-04-29 Size : 1024 Publisher : 李云东云
【Other】 lmf DL : 0: 线性调频时域、频域波形，匹配滤波、波束形成、模糊函数等一系列基础代码(Linear frequency modulation time domain, frequency domain waveform, matching filter, beamforming, fuzzy function and a series of basic codes)
Update : 2024-04-29 Size : 1024 Publisher : qwvfereike

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