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3.4_MODEM
- 基于ucos的moden通讯 以及用到的at指令-UCOS moden-based communications as well as the use of the at command
ril
- Android的Radio Interface Layer (RIL)提供了电话服务和的radio硬件之间的抽象层。Radio Interface Layer RIL(Radio Interface Layer)负责数据的可靠传输、AT命令的发送以及response的解析。应用处理器通过AT命令集与带GPRS功能的无线通讯模块通信。AT command由Hayes公司发明，是一个调制解调器制造商采用的一个调制解调器命令语言，每条命令以字母"AT"开头。-Android' s Radio I
RIL
- Ril设计思想解析目前的智能机在硬件上多采用双cpu的架构，一个是基带处理器，主要处理数字信号、语音信号的编码解码以及GSM通信协议，另一个是应用处理器，运行操作系统和各种应用程序。基带处理器、射频和其它外围芯片作为一个模块，成为GSM/GPRS modem，提供AT命令接口。网络的应用已经是一个需求的热点，而目前的GSM模块大多都能支持GPRS功能。应用处理器通过AT命令集与带GPRS功能的无线通讯模块通信，为实现网络的应用提供了一个最底层的支持。-Ril intelligent design
psf_3gpp
- Pulse shaping filters are used at the heart of many modern data transmission systems (e.g. mobile phones, HDTV) to keep a signal in an allotted bandwidth, maximize its data transmission rate and minimize transmission errors. Raised cosine filters for
56e946bf2520
- This code performs wide band Cooperative Spectrum Sensing under various noise levels. A large number of primary users as well as secondary users are considered.The detection is power spectral density based . This project gives the lower bound for the
Magras
- This file, function of delphi componene, it s working we-This file, function of delphi componene, it s working well
PAM_mod_demod
- scr ipt for pulse amplitud modulation (PAM) affected by AWGN, the electrical spectrum and the diagram eye is obtained. As well, as BER estimation is performed.