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有关载波调制的数字传输的MATLAB程序---载波幅度、相位、频率调制。-Related to modulation of the digital transmission of the MATLAB program--- carrier amplitude, phase, frequency modulation.
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一种自适应chirplet分解的快速算法
针对信号自适应chirplet分解未知参数多、实现起来比较困难的特点,文献[1]提出了一种新的chirplet分解快速算法。该算法利用计算信号的二次相位函数,得到其能量分布集中于信号的调频率曲线上的结论,此时通过谱峰检测可同时获得chirplet调频率、时间中心和幅度的估计;然后通过解线性调频技术获得其初始频率和宽度的估计,仿真结果验证了本文算法的有效性。
-Chirplet an adaptive decomposition al
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用matlab绘制线性调频信号的时域波形,同时对信号进行频谱分析,并考察采样频率以及信噪比对频谱分析的影响。-Matlab drawing with linear frequency modulation signal time-domain waveform, and spectral analysis of signals and the sampling frequency and signal to noise ratio study of the impact of spectrum
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从回波中估计多普勒参数是合成孔径雷达运动补偿的关键。文中研究了多目标回波对参数估计的影响,从理论上推导了估计多普勒中心和调频率对回波的不同要求,并用两个指标举例分析了一段实测机载SAR数据,给出了实际应用中参数估计时选择回波的原则。-Doppler parameters estimation from radar echoes is a key step in SAR(Synthetic Aperture Radar}motion cornpensation.
This paper rese
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高斯函数调制的源程序代码,频率为2.5Mhz-Gaussian function of the source code modulation frequency of 2.5Mhz
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Some instruments by Frequency modulation
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雷达信号处理用Matlab程序,产生线性调频,正交下变调制,脉冲压缩
-Radar Signal Processing with Matlab, linear frequency modulation, orthogonal variable modulation, pulse compression
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用调幅法在彩色图像中嵌入秘密信息的算法。人眼对蓝色较为不敏感,并且不易察觉图像高灰度(Luminance)区域和高频区域的变化,因此,秘密信息被嵌入到图像的蓝色通道,并且秘密信息的嵌入强度与该点的灰度值成正比。这样,秘密信息所引起的视觉效果上的改变是很小的。-The algorithm of the secret information embedded in color images using amplitude modulation method. The human eye is not
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该源码是使用抖动加网算法,调频算法二值化处理图像。实现图像加网,是数字加网的一种方法。
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This source code is the use of jitter and network algorithm, frequency modulation algorithm binarization processing image. To realize image with the nets, digital and network is a kind of method.
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用AM调制产生射频信号,并设计巴特沃斯滤波器对其进行滤波处理-AM modulation to generate radio frequency signals, and design Butterworth filter its filtering process
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线性调频(LFM)脉冲压缩雷达仿真,脉冲压缩雷达能同时提高雷达的作用距离和距离分辨率。这种体制采用宽脉冲发射以提高发射的平均功率,保证足够大的作用距离;而接受时采用相应的脉冲压缩算法获得窄脉冲,以提高距离分辨率,较好的解决雷达作用距离与距离分辨率之间的矛盾。-Linear frequency modulation (LFM) pulse compression radar simulation, pulse compression radar while increasing the role
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线性调频信号的速度多普勒模糊函数,有三维以及二维截面图-The speed of linear frequency modulation signal doppler fuzzy function, there are three dimensional and two dimensional section graph
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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
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用脉冲宽度按正弦规律变化而和正弦波等效的PWM波形即SPWM波形控制逆变电路中开关器件的通断,使其输出的脉冲电压的面积与所希望输出的正弦波在相应区间内的面积相等,通过改变调制波的频率和幅值则可调节逆变电路输出电压的频率和幅值-With pulse width according to the sine law of change and equivalent sine wave inverter PWM waveform of SPWM waveform control circuit swit
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数字中频接收机调制解调原代码 数字中频接收机调制解调原代码,-The digital intermediate frequency receiver with wide band digital intermediate frequency receiver modem source code modulation demodulation of the original code,
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Single-user uwb communication system simulation, based on the linear frequency modulation signal, the good is very good
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线性调频LFM脉冲压缩雷达仿真,线性调频脉冲压缩的Matlab程序-Linear frequency modulation LFM pulse compression radar simulation, linear frequency modulation pulse compression of the Matlab program
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开发系统的程序,欢迎大家使用,希望顶我,方便大家使用雷达线性调频信号产生(Development program of the system, and to welcome you all to use, want to me, convenient you use radar linear frequency modulation signal is generated)
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线性调频信号用于超宽带通信系统调制波形研究 很好的(Linear frequency modulation signal for uwb communication system modulation waveform research is very good)
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线性调频LFM脉冲压缩雷达仿真,线性调频脉冲压缩的Matlab程序(Linear frequency modulation LFM pulse compression radar simulation, linear frequency modulation pulse compression of the Matlab program)
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