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使用Modem发送文字信息给网上传呼
Date : 2025-12-21 Size : 16.37kb User :

控制语音Modem的程序
Date : 2025-12-21 Size : 33.74kb User :

手机PDA程序设计入门-序与导读 书籍语言: 简体中文 书籍类型: 程序设计 授权方式: 免费软件 书籍大小: 135 KB 书籍等级: 整理时间: 2005-8-10 6:34:30 -phone PDA Design entry-sequence and Guide books Language : English books categories : program design license : free software books Size : 135 KB books Grade : collate Time : 2005-8-10 6:34:30
Date : 2008-10-13 Size : 134.33kb User : 石朋非

手机PDA程序设计入门-Game API入门 书籍语言: 简体中文 书籍类型: 程序设计 授权方式: 免费软件 书籍大小: 391 KB 书籍等级: 整理时间: 2005-8-10 6:34:55 -phone PDA Design entry-Game API entry books Language : English books categories : program design license : free software books Size : 391 KB books Grade : collate Time : 2005-8-10 6:34:
Date : 2008-10-13 Size : 390.92kb User : 石朋非

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, Interleaver, PN generation) 2) Modulator (RRC filter) 3) Demodulator (Matched Filter, RAKE receiver) 4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder). You should run \"Simulation.m\" function that include all modules.
Date : 2008-10-13 Size : 10kb User : 李南

用c++写的SIP协议的协议栈,很精简,很好用-with c write the SIP protocol stack, very simple, easy to use
Date : 2008-10-13 Size : 577.96kb User : kiki

IA4420 工作在315/433/868/915MHz 频段(IA4421 工作在433/868/915MHz 频段); 2. 低电压工作,工作电压2.2V~5.4V; 3. 低功耗模式,待机电流0.3uA; 4. 调制模式FSK,并具备高度集成的PLL; 5. 低发射功率、高接收灵敏度设计,发射功率5~10 dbm 可调,接收灵敏度-109 dbm; 6. 内置时钟输出,可省掉MCU 的晶振; 7. 传输数据率高,数字信号可达115.2 kbit/s,模拟信号可达256 kbit/s; 8. 发射频偏与接收带宽可调; 9. 内部有数字滤波器,并可以根据要求选择不同的方式; 10. SPI 的控制接口,方便使用; 11. 接收时有数据同步码识别器,系统检测同步码后将后面的数据输出; 12. 有16 位的收发缓存器,用来缓存接收到或要发送的数据(接收数据有两种方式,用户可以按需选择); 13. 有低电压检测器,从2.2-5.4V 可调; 14. 有定时唤醒功能,定时时间可达几天; 15. 天线的兼容性强,有天线自动调节功能,并可采用PCB 或外置天线; 16. 工作温度范围-40~85,储存温度范围-55~125℃; 17. 采用微小TSSOP16 封装。 -315/433/868/915MHz IA4420 work in the band (IA4421 Working in 433 / 868/915MHz band); 2. Low-voltage, voltage 2.2 V ~ 5.4V; 3. Low-power mode, standby current 0.3 uA 169 * 85 *; 4. FSK modulation mode, and highly integrated PLL; 5. Low emission power and high receiver sensitivity, launched power 5 ~ 10 dbm adjustable, -109 dbm receiver sensitivity; 6. Built-in clock output can be saved MCU resonator; 7. Higher data transmission rate, digital signal of up to 115.2 kbit / s, analog signal up to 256 kbit / s; 8. Emission Offset and receiving adjustable bandwidth; 9. Internal digital filters, and may request to have a choice of different ways; 10. SPI control interface, and ease of use; 11. When receiving data synchronization code identifier, the system will detect synchronous code behind the
Date : 2008-10-13 Size : 38.51kb User : songxiaoyan2008

Nokia手机软件,短信语音发音软件功能十分好用,
Date : 2008-10-13 Size : 1.71mb User : xym

pc 透過simens mobile phone 連線,可直接傳訊.
Date : 2008-10-13 Size : 93.46kb User : time cheng

Pocket PC搜寻周围蓝牙设备程序。来自微软Windows Mobile 6.0 SDK的代码
Date : 2008-10-13 Size : 7.42kb User : Lee Aiguang

ar6k 的WIFI驱动,基于linux操作系统,sdio
Date : 2008-10-13 Size : 452.63kb User : yy

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
Date : 2008-10-13 Size : 4.96kb User : xionghailiang

HIPERLAN/2,16QAM mode with 3/4 code rate (4/6 P2 puncturing rate)
Date : 2008-10-13 Size : 8.66kb User : 何德鉴

asterisk 一个模拟IPPBX的源代码,可以作为开发IPPBX最好的工具;
Date : 2008-10-13 Size : 12.48mb User : Pop shi

在MATLAB环境中,编程实现6径的准静态ITU-VA信道
Date : 2008-10-13 Size : 1.3kb User : 杨睛

WCDMA接口协议中文版,用于详细了解WCDMA接口结构组成及流程
Date : 2008-10-13 Size : 1.56mb User : 单江

REI开发的NeoLauncher现在开源。希望高手继续完善!
Date : 2008-10-13 Size : 1004.85kb User : WD

读取Windows Mobile 6中的SIM卡存储信息,包括条目容量,已用条目数,存储长度等。C#编写,VS2005下编译。
Date : 2008-10-13 Size : 13.15kb User : AK

有关QPSK调制解调的仿真程序,包括基带输入波形及其功率谱、QPSK调制信号及其功率谱、AWGN信道输出及其功率谱、通过瑞利信道之前和之后的信号星座图 6)在高斯白噪声和瑞利衰落信道条件下的误码性能以及高斯白噪声的理论曲线,所有误码性能曲线在同一坐标比例下绘制
Date : 2008-10-13 Size : 41.12kb User : Navy2008_CHINA


Date : 2025-12-21 Size : 1.71mb User :
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