Location:
Search - DSSS
Search list
Description: DSSS is the source code to generate the following things
Platform: |
Size: 84992 |
Author: Naveed |
Hits:
Description: project DSSS use matlab
Platform: |
Size: 15360 |
Author: HaiVanNguyen |
Hits:
Description: dsss code using matlab applying theory written in william stallings wireless communication. the result is incorrect as it has sum coneceptual flaw
Platform: |
Size: 1024 |
Author: umera |
Hits:
Description: 实现了一个直接扩频系统，使用BPSK作为调制解调方法。并比较白噪声AWGN及瑞利衰落(rayleigh fading)环境下，误码率的影响。-There are two files in the zip folder. bpsk_spread.m and jakesmodel.m
Steps for simulation:
1] Run jakesmodel.m first
2] Then run bpsk_spread.m .
3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented
4] The resulting performance is stored in BER_awgn.
5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file.
6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable.
7] Run the simulation.
To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray
>>semilogy([1:8],BER_awgn(1:8), g* )
hold on
semilogy([1:8],BER_ray(1:8), -.b* )
hold on
grid on
Platform: |
Size: 3072 |
Author: seepwq |
Hits:
Description: 鸽子的源码 vc++版的哦。dddd鸽子的源码 vc++版的哦。鸽子的源码 vc++版的哦。-鸽子的源码 vc++版的哦。dsss鸽子的源码 vc++版的哦。鸽子的源码 vc++版的哦。
Platform: |
Size: 1024 |
Author: wangwei |
Hits:
Description: The AT76C901 is highly integrated ASIC that can be used as a part of a wireless phone
that utilizes an 802.11 LAN-based wireless medium and carries Voice over IP (VoIP)
packets. Specified in this datasheet, an ARM® processor-based subsystem (Baseband
Controller) performs most of the PLCP and low MAC functions defined in 802.11. A
DSP, a Codec, and support circuitry perform the encoder function and interfacing to an
external baseband processor for a DSSS system. An interrupt controller and multiple
support peripherals are also included.-The AT76C901 is highly integrated ASIC that can be used as a part of a wireless phone
that utilizes an 802.11 LAN-based wireless medium and carries Voice over IP (VoIP)
packets. Specified in this datasheet, an ARM® processor-based subsystem (Baseband
Controller) performs most of the PLCP and low MAC functions defined in 802.11. A
DSP, a Codec, and support circuitry perform the encoder function and interfacing to an
external baseband processor for a DSSS system. An interrupt controller and multiple
support peripherals are also included.
Platform: |
Size: 67584 |
Author: hfr |
Hits:
Description: et, an ARM® processor-based subsystem (Baseband
PLCP and low MAC functions defined in 802.11. A
ry perform the encoder function and interfacing to an
a DSSS system. An interrupt controller and multiple-et, an ARM® processor-based subsystem (Baseband
PLCP and low MAC functions defined in 802.11. A
ry perform the encoder function and interfacing to an
a DSSS system. An interrupt controller and multiple
Platform: |
Size: 3072 |
Author: hfr |
Hits:
Description: 直接序列扩频程序
直接序列扩频程序 -dsss dsss dsss dsss implementdsss dsss dsss dsss implement
Platform: |
Size: 2048 |
Author: 王明 |
Hits:
Description: 分析了在超宽带通信系统中的扩频干扰，并用两种通用的调制技术实现了对提出的抗干扰方法的仿真-he ultra wideband (UWB) interference to direct
sequence spread spectrum (DSSS) receiver is analyzed. Two
popular UWB modulation schemes, the time hopping pulse
position modulation (TH-PPM) and time hopping pulse
amplitude modulation (TH-PAM), are considered. The pulse
repetition rate (T’RR) of UWB signal and the freqnency hand of
the DSSS play the primary roles in the BER performance of the
DSSS receiver in the presence of UWB interference. The UWB
signal parameters raising the interference to DSSS receiver are
discussed. The characteristics of an aggregation of multiple
UWB signals are somehow different from that of a single UWB
device, especially for the TB-PPM scheme, where discrete
spectral lines maybe exist in the band of DSSS receiver. The
system parameters of TH-PPM such as the modulaiion index
and maximum shift incurred hy the time hopping code
determine the amplitude of the discret
Platform: |
Size: 283648 |
Author: 张洋 |
Hits:
Description: Narrowband Interference Suppression in DSSS System Based on Frequency
Shift Wavelet Packet Transform-Narrowband Interference Suppression in DSSS System Based on Frequency
Shift Wavelet Packet Transform
Platform: |
Size: 112640 |
Author: 张洋 |
Hits:
Description: 西电毕业论文，文章详细的阐述了直扩原理并且进行了仿真。扩展频谱技术有多种基本实现方式，本文主要介绍的是直接序列
扩频技术，特别针对二进制的 PSK调制解调技术，直接序列扩频系统的抗干
扰能力分析与直接序列扩频系统的同步方法，并进行了相关仿真分析。-Spread spectrum communications has many basic
manners of implementation, this paper main introduces the direct
sequence spread spectrum technology. The technology of digital
signals’ modulation and demodulation, aiming at phase shift keying
analyzing the capacity of resistance to anti-jamming of direct
sequence spread spectrum system(DSSS) and the method of
synchronization in direct sequence spread spectrum system base on
the DSSS of the matlab’s simulation.
Platform: |
Size: 235520 |
Author: caiyh |
Hits:
Description: 一个完整的直扩通信系统matlab实现，已编译通过-DSSS communication system complete matlab implementation, compiled by
Platform: |
Size: 8192 |
Author: 小一 |
Hits:
Description: direct sequence spread spectrum
Platform: |
Size: 1024 |
Author: mohsen |
Hits:
Description: 针对高动态环境下扩频信号的载波捕获与跟踪问题,分析研究了几种适合的扩频信号跟踪的频率估计算法,并设计了采用四相鉴频器、符号叉积自动频率跟踪算法和科斯塔斯环相混合进行载波跟踪的一整套方案-DSSS Receiver High Dynamic Carrier Tracking Technology
Platform: |
Size: 56320 |
Author: w |
Hits:
Description: 基于Labview的直扩系统仿真，采用m序列伪随机码-Based on Labview DSSS system simulation using m-sequence pseudo-random code
Platform: |
Size: 582656 |
Author: 吴开 |
Hits:
Description: 本文利用MATLAB的可视化工具箱simulnk建立了直扩通信系统的仿真模型，为扩频信号源自检程序设计提供参考。-In this paper, the visualization MATLAB toolbox simulnk DSSS communication system established a simulation model for the spread spectrum signal self-test program designed to provide information.
Platform: |
Size: 318464 |
Author: 小霞 |
Hits:
Description: figure of spread spectrum
Platform: |
Size: 1024 |
Author: cool_boys |
Hits:
Description: DSSS matlab program to calculate D-DSSS matlab program to calculate DSSS
Platform: |
Size: 2048 |
Author: Taha |
Hits:
Description: WCDMA - Simulation of DSSS and QPSK, get number of bit errors. U can change number of chip per bit to see the result better when increasing.
Platform: |
Size: 1024 |
Author: long |
Hits:
Description: 直接扩频序列的仿真 bpsk调制解调 有图示说明-DSSS simulation
Platform: |
Size: 1024 |
Author: 张汀 |
Hits:
«
1
2
...
4
5
6
7
8
910
11
12
13
14
...
17
»