Search - 24 - CodeBus

Search - 24 - List

[Communication-Mobile] arm_2440_measurement DL : 0: arm2440系统编程，集成了LCD，camera，usb,uart功能-arm2440 system programming, integration of the LCD, camera, usb, uart functions
Date : 2025-12-22 Size : 6.47mb User : bbsunsj
[Communication-Mobile] linux-2.6.27-m8.tar DL : 0: MEIZU M8 Linux kernel s3c6410 1,if you want to boot from onenand flash,just "make zImage" is OK. 2,if you want to boot from nfs,remove select: "make menuconfig"--->General setup --->[] Initial RAM filesystem and RAM disk (initramfs/initrd) support, then "make zImage" is OK. finished drivers: LCD touch screen key button sound card camera
Date : 2025-12-22 Size : 55mb User : hui
[Communication-Mobile] Alamouti DL : 0: 主函数Alamouti(Nr,max_snr,max_err_symbol,symbol_per_frame) 调用函数QpskMapping(psudo_bit_sequence)－－二进制数据到QPSK信号的变换调用函数RayleighCH(Nr,Nt)－－瑞利衰落信道模拟仿真示例： Alamouti(1,12,20,24) 说明： 1.2根发射天线、1根接收天线 2.最高信噪比为12dB，即仿真范围为0dB到12dB 3.在每个信噪比条件下,误符号数超过20即停止该信噪比条件下的仿真 4.每一帧数据为24个QPSK符号综合仿真函数SimAlamouti(max_snr,max_err_symbol,symbol_per_frame) 具有一根接收天线系统的SER性能与二根接收天线的系统SER性能比较 SimAlamouti(12,20,24) 参数说明： 1.max_err_symbol的取值直接影响了仿真的精度：取值越大，精度越高，误符号率曲线也更平滑；但需更长的仿真时间 2.一般max_snr小于15dB，程序中snr为信号噪声功率比 3.本程序仿真时未考虑帧与帧之间，信道衰落系数的相关性，因此symbol_per_frame一定程度上表征了信道相关时间的大小，即在symbol_per_frame个QPSK信号发送时间内，信道衰落系数是不变或缓变的，而在下一帧数据中，信道衰落系数可以认为已变成另一值 4.本程序假定在接收端已通过信道估计获得信道衰落系数-ALAMOUTI performs Monte-Carlo simulation and estimates Bit Error Rate (BER) of Alamouti Scheme [1] over Rayleigh channel. The scheme presumes 2 transmit (Tx) and arbitrary number of receive (Rx) elements. If Rx=1 (one receive element) ALAMOUTI is transformed to the order 2 transmit diversity scheme with Maximum Ratio Combining (MRC). The modulation format is MPSK with arbitrary order M which can be controlled by user.
Date : 2025-12-22 Size : 199kb User : chenyiren
[Communication-Mobile] 24.212 DL : 0: OPNET MODEL- HERE IS AN OPNET MODEL RELATED TO WIRELE-OPNET MODEL- HERE IS AN OPNET MODEL RELATED TO WIRELESS
Date : 2025-12-22 Size : 96kb User : fkbm707
[Communication-Mobile] shuzizhong3 DL : 0: 数字钟VHDL软件设计，包含多种功能，报时，12,24切换，调时-The design of VHDL digital clock software, including a variety of functions, timer, 12,24 switch, adjustable
Date : 2025-12-22 Size : 1.62mb User : 李佳逸
[Communication-Mobile] 电控阀数据自动录入设备-24 DL : 0: 利用串口搜集检测数据，根据时间和批次记录并存储，能查询与修改(Using serial port to collect detection data, according to the time and batch records and storage, can query and modify)
Date : 2025-12-22 Size : 5.84mb User : sanye1780
[Communication-Mobile] GPSfangzhen DL : 0: 绘制了24课GPS卫星围绕地球旋转的动态图(A dynamic map of the rotation of GPS satellites around the Earth in lesson 24 has been drawn.)
Date : 2025-12-22 Size : 8kb User : loveting
[Communication-Mobile] 实验24 485实验 DL : 0: STM32，采用485总线，实现双机通信(485 realizes the two-machine communication.)
Date : 2025-12-22 Size : 3.26mb User : 天涯123521