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bianhuakuaiman
- leo卫星通信系统中矢量化多普勒頻移计算方法。-A quantization calculation method for doppler frequency shift in LEO communications system.
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
matlab_silulink
- 无线通信信道的模拟，多普勒频移和经典谱的证明-Wireless communication channel simulation, the Doppler frequency shift and classical spectral evidence
EBPSK_LFM
- 对EBPSK(Extended binary phase shift keying)调制雷达系统的特点，本文将其与传统的LFM(Linear frequency modulation)雷达系统进行综合性能比较。-he overall performances of EBPSK(Extended binary phase shift keying) modulation and LFM(Linear frequency modulation) radar systems are compared.
dopplershift-and-multipath
- 此文档详细描述了多普勒频移以及多径对信号传输的影响。包含原理分析与推导。同时附有完整的程序以及结果仿真图。讲解全面，帮助很大。-This document describes in detail the doppler frequency shift and the multipath effect on the signal transmission.Contains the principle analysis and derivation.At the same time with com
doppler_sig
- 多普勒信号有很多种，我这里上传的是通过常规函数构造出一个理想的多普勒信号，多普勒信号是用其频移来进行计算的，一般是激光干涉仪等出来多普勒信号-Doppler signal there are many, I am here to upload a laser Doppler interferometer signal out through conventional function construct an ideal Doppler signal, the Doppler frequency
assign1
- 1. 基于simulink搭建一个QPSK发送链路，QPSK调制信号经过了瑞利衰落信道，观察信号经过衰落前后的星座图，观察信道特性。仿真参数：信源比特速率为500kbps，多径相对时延为[0 4e-06 8e-06 1.2e-05]秒，相对平均功率为[0 -3 -6 -9]dB，最大多普勒频移为200Hz。-1. Based on simulink structures, QPSK sent a link, the Rayleigh fading channel after the QPSK m
mimugate-shcft
- 用于模拟时变非平稳的ARMA过程,根据Doppler频移和时变-Used to simulate time-varying non-stationary ARMA process, according to the Doppler frequency shift and time varying
and
- 用于模拟时变非平稳的ARMA过程,根据Doppler频移和时变-Used to simulate time-varying non-stationary ARMA process, according to the Doppler frequency shift and time varying
Tois
- 这是瑞利信道中有关多普勒频移的多径信道和单径信道的相关matlab仿真程序,-This is relevant in Rayleigh channel doppler frequency shift of channel multipath channel and a single diameter related matlab simulation program,
assembly-configuration
- 这是瑞利信道中有关多普勒频移的多径信道和单径信道的相关matlab仿真程序,-This is relevant in Rayleigh channel doppler frequency shift of channel multipath channel and a single diameter related matlab simulation program,
Fayleigh-This-channel
- This is relevant in Rayleigh channel doppler frequency shift of channel multipath channel and a single diameter related matlab simulation program,
src
- 完整的无线通信系统，针对高速移动场景下的多普勒频移，采用同步模块减少频移的干扰(The complete wireless communication system uses the synchronization module to reduce the interference of the frequency shift in view of the Doppler frequency shift in the high-speed mobile scene)
precession_theory
- 对圆锥运动引起的微多普勒频移进行matlab仿真(Matlab simulation of the micro Doppler frequency shift caused by conical motion)
LFM信号脉冲压缩时的关键问题仿真
- 以下几个matlab程序对雷达常用的线性调频信号（lfm信号）进行脉冲压缩时的关键问题进行了仿真，其中包括旁瓣抑制影响（加窗与不加窗）、多卜勒频移影响，并对时域脉压与频域脉压结果进行了对比分析，供相关技术人员参考。(The following several matlab programs simulate the key issues when pulse compression is performed on radar commonly used chirp signal (lfm sig
19823641xianxintiaopinbo
- 对舰船目标回波信号进行分析，并对信号进行多普勒频移，脉冲展宽等研究，最终构建回波信号(The echo signal of ship target is analyzed, and the Doppler frequency shift and pulse broadening are studied. Finally, the echo signal is constructed.)
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
ofdm_system
- 采用QPSK调制，研究OFDM多普勒频移估计与补偿算法(Research on Doppler Frequency Shift Estimation and Compensation Algorithms for OFDM Using QPSK Modulation)
OFDM-channel-estimation-methods
- 基于传统信道估计LS，MMSE，和不同多普勒频移下的误码率等(Based on the traditional channel estimation ls, MMSE, and different Doppler frequency shift bit error rate)