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CDdata2
- Divides the range swath (range cells) of this block into Nspect sections and finds the average power spectrum for each segment. Fits a parabola to the baseband Doppler centroid vs. range This fit is most useful if the whole range swath
Rapid-Acquisition-of-Doppler-Shift-
- 本文提出了一种适用于低轨卫异扩频通信系统的多普勒频移快捕方法.该方法基于数字匹配滤波器及自动频率控制环路_利用数字匹配滤波器的囚码快捕特性及其输出主相关峰值对频偏的敏感性，缩短多普勒频移的 捕获时间.论文首先推导了多普勒频移的平均捕获时间表达式，然后根据数值分析结果得到了准最佳捕获判决策略，最后通过比较验证了该快捕方法相对于传统串行捕获方法在性能上的提高. -This paper presents a low-orbit health for different spread spect
target-detection-in-sea-clutter
- 作者分析了海杂波的多普勒谱特性，给 出了两种基于多普勒谱特征的检测方法，应用联合瑞利概率密度函数描述海杂波 多普勒谱的统计特性和熵值方式表示多普勒谱的波形特性。 -As the present study on sea clutter are shown, based on the analysis of sea clutter Doppler spectrum characteristics, two target detection algorithms are propo
rad_pat
- RADAR RADIATION PATTERN, Transmit-mode Radiation Pattern, Doppler Spectrum of Transmit-Receive Mode Radiation Pattern-RADAR RADIATION PATTERN, Transmit-mode Radiation Pattern, Doppler Spectrum of Transmit-mode Radiation Pattern, Doppler Spectrum of T
fangzhen3
- 进行雷达测速的频谱分析，主要是对实际信号分析得到多普勒频率，进而求出车运行的速度-Spectrum analysis of radar speed。The Doppler frequency of the actual signal analysis, and then calculate the running speed of the car
Rayleigh_channel
- 移动通信中QPSK调制在8,Multipath Rayleigh Fading Channel下的传播特性分析（包括Impulse Response/frequence Response/phase trajectory/multipath components/multipath gain/Doppler spectrum等参数指标）-Mobile communications QPSK modulation in 8, Multipath Rayleigh Fading Channel
Untitled2
- 多普勒信号模型，多普勒信号快速傅立叶法分析频谱，FFT-Doppler signal model, the fast Fourier analysis of Doppler signal spectrum, the FFT
ADD-CODE-ns2_ricean_dist
- III. USAGE There is a sample scr ipt in the simscr ipt directory. You will need this and the file "rice_table.txt". You should be able to run the sample scr ipt "ricean-sample.tcl". This is just a slightly modified version of the examp
idocdown
- (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。-(3) with Simulink tools to write code (S-Function mode), to produce a single path Rayleigh channel Doppler spectrum is the classical spectrum, in which the
radar-detection
- 超速行驶是引起交通事故的主要原因之一，雷达测速仪是检测车辆超速行驶的有效方式之一。本代码用Matlab仿真实现多普勒雷达测速，在MATLAB仿真软件中对被检测车辆运动产生的多普勒频率进行频谱分析。-Speeding is one of the main causes a traffic accident, the radar gun is one effective way to detect speeding vehicles. The code using Matlab simulation
GPS-generation
- 研究了一种数字中频 GPS 信号生成方法。给出了数字中频信号数学模型，模型考虑了各种因素对信号的影响。通过导航电文分析，提出信号传播时延、多普勒频移以及信号入射方向的估计方法。给出了中频信号产生的流程，对其中时延的设置，信号的上变频、信号幅度设置以及方向信息的导入进行了阐述。对所生成的信号模型进行了仿真分析，给出了信号产生各个阶段的频谱，对所生成的信号进行了相关捕获。仿真结果表明频谱特征符合理论分析，能够被捕获并找出信号时延从而实现定位。证明该信号模型能作为信号源应用于 GPS接收机研制中。-】
Dataprocess
- 使用matlab实现的实测无线信号多普勒功率谱-Using matlab to achieve the measured Doppler power spectrum radio signals
code-capture-of-dsss-system
- 本文主要利用matlab编程工具对直接序列扩频通信的捕获过程进行仿真。仿真主要基于滑动相关法的有关理论,先讨论扩频仿真中起着重要作用的m序列的生成问题,尔后讨论调制信号的产生,然后在信号的捕获中分步讨论,先对捕获的流程进行简单的仿真,再依次加入噪声和多普勒频移后进行捕获仿真-In this paper, using matlab programming tools for direct sequence spread spectrum communication capture process
Jakes-Model
- MATLAB无线通信信道中Jakes模型仿真，可以显示Jakes信道模型的时域特性，幅度相位分布，自相关函数和多普勒谱-Jakes model generation wireless communication channel can display time-domain characteristics Jakes channel model, the amplitude and phase distribution of the autocorrelation function and Do
waveform_design
- 雷达中线性调频信号的脉冲压缩，距离普，多普勒谱及其回波仿真-Chirp radar signal pulse compression, the distance P, and echo Doppler spectrum simulation
FWGN
- 运行plot-FWGN.m可以得到FWGN模型和多普勒普，该程序需要调用程序FWGN-model和Doppler-spectrum-Run plot-FWGN.m can get FWGN model and Duopulepu, the program needs to call the program FWGN-model and Doppler-spectrum
Rayleigh
- Simulink工具编写代码(S-Function 方式)，产生一单径瑞利信道，其多普勒谱 为经典谱，其中移动速率为 120km/h。-Simulink tools to write code (S-Function mode) to generate a single path Rayleigh channel, the Doppler spectrum For the classical spectrum, where the rate of movement of 120km/h.
craet
- 利用Matlab产生FMICW信号，并用二维FFT处理得到距离多普勒谱(The FMICW signal is generated by Matlab, and the distance Doppler spectrum is obtained by two-dimensional FFT processing.)
Pulse_compression
- 脉冲压缩过程，包括回波信号及参考信号模型构建以及频谱分析，最后进行脉冲压缩，并对数据进行归一化处理。程序二为雷达多普勒测速matlab程序。(The pulse compression process, including echo signal and reference signal model construction and spectrum analysis, finally performs pulse compression and normalizes the data.The
2
- 2. 关于无线信道的多普勒谱，请回答以下问题： (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler sp