is-95
共 23 篇文章
is-95 相关的电子技术资料，包括技术文档、应用笔记、电路设计、代码示例等，共 23 篇文章，持续更新中。
IS-95 CDMA物理层Matlab仿真源程序
main_IS95_forward.m
此函数用于IS-95前向链路系统的仿真，包括扩
频调制，匹配滤波，RAKE接收等相关通信模块。
基于FPGA的CDMA前向业务信道基带模块的研究与设计.rar
移动通信是目前通信技术中发展最快的领域之一，对人类的生活和社会的发展产生了重大的影响。随着因特网的迅猛发展和各种无线业务需求的增加，目前以承载单一话音业务为主的无线通信网已经越来越不适应人们的需要，所以，以大容量、高数据率和承载多媒体业务为目的的第三代移动通信系统(IMT-2000)成为无线通信的发展方向。码分多址(CDMA)技术凭借其良好的抗噪性、保密性和低功率等优点成为主要的无线接入技术，今后
Scrambling Techniques for CDMA Communications
With the advent of IMT-2000, CDMA has emerged at the focal point of<br />
interest in wireless communications. Now it has become impossible to discuss<br />
wireless communications without knowing the
Enhanced+Radio+Access+Technologies
Following chapter introduces the mobile communication, gives a short history of wireless<br />
communication evolution, and highlights some application scenarios predestined for the<br />
use of mobil
WALSH CODES AND THEIR PSEUDOALEATORY SEQUENCES - INTRODUCTION - THE REPRESENTATION AS ELEMENTS OF
WALSH CODES AND THEIR
PSEUDOALEATORY SEQUENCES
- INTRODUCTION
- THE REPRESENTATION AS ELEMENTS OF THE EXTENS
GALOIS FIELDS
- THE PSEUDORANDOM SEQUNCE GENERATORS MPLEMENTATION
- MAXIMAL SEQUENCE
WALSH CODES AND THEIR DERIVATIVES - INTRODUCTION - WALSH FUNCTIONS DEFINITION AND PROPERTIES - W
WALSH CODES AND THEIR
DERIVATIVES
- INTRODUCTION
- WALSH FUNCTIONS DEFINITION AND PROPERTIES
- WALSH FUNCTION GENERATING
- WALSH FUNCTIONS USED WITHIN THE IS-95 SYSTEM
- WALSH FUNCTIONS USED WIT
IS-95前向链路通信系统仿真
IS-95前向链路MATLAB仿真，具体内容有：卷积编码、信号加扰、块交织、正交复用、正交扩频、基带滤波、信道设计、接收发射机的设计。最后通过误码率来说明这个系统的好坏
IS-95系统中反向业务信道采用接入信道采用（3,1,8）的卷积码
IS-95系统中反向业务信道采用接入信道采用（3,1,8）的卷积码，其码率R=1/3，约束长度K=9。提供一种简单的卷积码解码方法。
高斯白噪声输入
高斯白噪声输入，模拟IS-95滤波器来滤的低通信号。
CDMA的IS-95系统反向业务信道端到端的模拟
CDMA的IS-95系统反向业务信道端到端的模拟，基于simulink
VHDL语言实现了IS-95标准中的48阶成型滤波器。工作速率80Mbps。接收发送端均可使用。
VHDL语言实现了IS-95标准中的48阶成型滤波器。工作速率80Mbps。接收发送端均可使用。
此程序有利于通信专业人士学习 IS-95标注。其中给出了物理层的仿真。
此程序有利于通信专业人士学习 IS-95标注。其中给出了物理层的仿真。
This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is
This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate.
The simulation is written for static channel and AWGN noise. The packet include:
1) Packet Builder (Viterbi Encoding
This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is wr
This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is written for static channel and AWGN noise.
The packet include:
1) Packet Builder (Viterbi Encoding
IS-95 matlab源码。包括PN产生
IS-95 matlab源码。包括PN产生，打包，调制，解调，维特编码和解码，接收机等。
CDMA TYPE REFFERENCE SYSTEMS - INTRODUCTION - IS-95 system - THIRD GENERATION SYSTEMS
CDMA TYPE REFFERENCE SYSTEMS
- INTRODUCTION
- IS-95 system
- THIRD GENERATION SYSTEMS
MATLAB仿真IS-95开环闭环功率控制
MATLAB仿真IS-95开环闭环功率控制
本次设计的数字基带成形滤波器参照IS-95标准进行设计
本次设计的数字基带成形滤波器参照IS-95标准进行设计，对输入信号进行4倍过采。IS-95标准为：其中通带频率为590Khz，通带的链波大小1.5dB，截止带的频率为740Khz，截止带的衰减量为40dB，传输的数据率为1.2288Mhz，传输的频宽为1.25Mhz。
his packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is w
his packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate.
The simulation is written for static channel and AWGN noise. The packet include:
1) Packet Builder (Viterbi Encoding,
Handover in IS-95, cdma2000, 1X-EV and WCDMA 主要描述了切换于IS-95, cdma2000, 1X-EV and WCDMA,为系统设计和参数设置提供参考
Handover in IS-95, cdma2000, 1X-EV and WCDMA 主要描述了切换于IS-95, cdma2000, 1X-EV and WCDMA,为系统设计和参数设置提供参考.