搜索资源列表
FSK
- FSK，扩频信号调制，加载高斯白噪声，混频解调，得到误码率-FSK, spread spectrum signal modulation, Gaussian white noise loading, mixing, obtained by demodulating the error rate
dscdmamodem
- 扩频通信技术是一种信息传输方式，其信号所占有的频带宽度远大于所传信息必需的最小带宽；频带的扩展是通过一个独立的码序列来完成，用编码及调制的方法来实现的，与所传信息数据无关；在接收端则用同样的码进行相关同步接收、解扩及恢复所传信息数据。-Spread spectrum communication technology is a way of information transmission, the band width of the signals than preaching informat
m_sequence
- 本程序是用M语言实现m序列的生成，用于扩频通信中的伪随机码-Achieve generated m sequence with M language for spread spectrum communication
DSSS
- 用VHDL实现基于Xilinx的FPGA上的直接序列扩频通信，并且附带了matlab仿真程序。-VHDL implementation based on direct sequence spread spectrum communication on Xilinx' s FPGA, and comes with matlab simulation program.
WCDMA
- wcdma信号仿真，生成四路信号并扩频调制，采用CQPSK调制方式。-WCDMA signal simulation, generating four signals, spread spectrum modulation using CQPSK modulation.
chapter2_1
- 语音生成系统的传递函数，语音信号激励模型：三角波及其频谱-Speech generation system transfer function, speech signal incentive model: triangle spread spectrum
watermake
- matlab实现的音频水印和图像水印代码 包括回声和量化方法 扩频水印以及最低位编码 附实验报告-Matlab audio watermarking and image watermarking code Including the echo and quantitative methods Spread spectrum watermarking and lowest coding experiment report
anti_freq
- 扩频系统的收发，发送端及接收端的仿真程序-Spread spectrum
si4432_tx_example
- Frequency hopping spread spectrum transmitter using si4432 and atmega8
mage8_rx
- Frequency hopping spread spectrum receiver using si4432 and atmega8, 50 channels 20ms hop time
FRFT
- 在直扩通信系统中,我们可以利用FRFT进行抗宽带干扰的目的,FRFT主要针对线形调频信号-In direct sequence spread spectrum communication system, we can use FRFT anti broadband interference purposes, mainly for linear FM signal FRFT
anti_freq
- 扩频系统的收发，发送端及接收端的仿真程序-Spread spectrum
M
- 基于M序列的直接序列扩频通信系统设计与仿真原理图-Direct sequence spread spectrum communication system based on M sequence schematic design and simulation
wcdma
- 结束语 本文针对扩频技术在WCDMA系统的中的应用进行简单论述及仿真。文中先对扩频通信基本原理及WCDMA的基本原理进行了简单的介绍，也对移动通信和扩频通信的发展进行了简要说明。再对扩频通信技术在WCDMA中的应用进行了简单介绍，最后重点对WCDMA中的扩频、加扰、调制以及解扩、解扰、解调,进行了仿真模型的建立和对仿真结果进行了时域分析。 -Conclusion In this paper the application of spread spectrum technology in
DSSS
- 基于simulink搭建DSSS通信收发链路，调制方式BPSK，m序列扩频增益63-Based on simulink build DSSS communication transceiver link, modulation BPSK, m-sequence spread spectrum gain 63
IEEE802.11b
- 本代码是关于802.11b的整个发送与接收框架的参考，11b虽然传输速率比较低，但是它作为扩频通信的经典协议，仍然是研究的热点。此代码详细揭示了11b的整个流程，特别是对接收端的各种同步算法有详细推到。鉴于商业机密，索要完整代码，请咨询QQ：2586346485-The code is a reference on the entire transmission and reception 802.11b framework, 11b although the transmission rate
exmple_sx1278
- sx1276射频模块的代码，可参考进行修改，实现无线传输数据，使用了扩频技术的模块，此代码是测试代码。-Sx1276 RF module code, can refer to modify, to achieve the wireless transmission of data, using the spread spectrum technology module, this code is to test the code.
cdma
- The main aim of our project is to simulate CDMA modem using DS-SS (Direct sequence spread spectrum) in MATLAB. Spread spectrum is basically type of modulation that spreads data transmission across available frequency band, in excess of minimum ban
QPSK_15
- 这是一个完整的matlab下的扩频通信系统的仿真源代码。包括QPSK调制、m序列生成、载波调制、解调、解扩等操作。非常完整，代码通过调试，可以直接运行。-This is a complete matlab under the spread spectrum communication system simulation source code. Including QPSK modulation, m sequence generation, modulation, demodulation,
5G
- 稀疏码多址接入，就是应5G需求设计产生的一种非正交多址技术。在发送端通过多维调制和稀疏扩频将编码比特映射成SCMA码字，接收端通过多用户检测完成译码。-Sparse code multiple access is a kind of non orthogonal multiple access technology, which should be produced by the design of 5G demand. The coding bits are mapped into SCMA