-
10285713
说明： 对语音编码技术的特点进行了分析与研究, 对波形编码,声码器和混合编码三种主要 的语音编码进行了比较, 并介绍了GSM 和CD(This paper analyzes and studies the characteristics of speech coding technology, compares the three main speech codes: waveform coding, vocoder and hybrid coding, and introduces GSM and CD.)
- 2019-03-27 23:52:25下载
- 积分：1
-
STC单片机多机联级串口程序可实现.416路控制
说明： STC单片机多机连级串口程序可实现.416路控制. 串口和485都可以使用、 一个程序可以用在26块控制板上，通过拔码开关给板子编号，每块板可以过滤分析所接收到不同的代码。进行继电器的动作，能返回数据，因使用定时器发送返回，不会阻塞或者代码错乱、可以 用在中控，物联网，等各种控制场合。修改代码后，能达到上千路的控制。(STC single-chip microcomputer multi-level serial port program can realize 416 channel control. Serial port and 485 can be used. One program can be used on 26 control boards. Each board can filter and analyze different codes received by numbering the boards with the pull-out switch. Relay operation can return data, because the timer is used to send the return, it will not block or code confusion, and can be used in central control, Internet of things, and other control occasions. After modifying the code, it can achieve thousands of control.)
- 2020-03-06 23:07:17下载
- 积分：1
-
AWGN
qpsk在高斯信道下的仿真，包括误码率和仿真图(Simulation of QPSK in Gaussian channel)
- 2019-01-01 16:14:30下载
- 积分：1
-
carrier synchronizationttt
实现BPSK的载波同步，采用的方法是锁频环，最大似然法频率估计(BPSK carrier synchronization is realized,the method is frequency - locked loop and maximum likelihood frequency estimation)
- 2019-02-15 14:45:13下载
- 积分：1
-
test_main
matlab仿真MIMO系统调度算法研究，ZF算法，以及比例公平调度算法(matlab simulation of the scheduling algorithm of MIMO systems, the ZF algorithm, and the proportional fair scheduling algorithm)
- 2012-05-31 10:16:12下载
- 积分：1
-
OAM
不同模态OAM的相位图，电场场强图，及用箭头表示相位变化(Phase diagrams, electric field intensity maps of different modes of OAM, and phase changes with arrows.)
- 2020-12-25 11:39:05下载
- 积分：1
-
13
说明： A Study of the Ultra-Wideband Wireless Propagation Channel and Optimum UWB Receiver Design
- 2010-11-13 05:01:09下载
- 积分：1
-
fenxuan
这是自己收集的一些有关信号分选的比较优秀的毕业论文，希望对需要的人有所帮助(Some comparison of the signal sorting excellent thesis)
- 2010-06-02 16:46:29下载
- 积分：1
-
IIR 数字滤波器的设计与实现
设计一个巴特沃兹数字低通滤波器，其技术指标为：3dB带宽为0.2π，阻带截止频率为0.3π，通带纹波为1dB，阻带衰减大于30dB，采样间隔T=10ms。
1）采用冲激响应不变法；
2）采用双线性变换法设计；
3）采用FIR的窗函数（Hanning窗、Hamming窗或Blackman窗）设计。(A Butterworth digital low-pass filter is designed. Its technical specifications are: 3 dB bandwidth is 0.2 pi, stopband cut-off frequency is 0.3 pi, passband ripple is 1 dB, stopband attenuation is more than 30 dB, sampling interval T=10 Ms. 1) Impulse response invariance method is adopted. 2) Design by bilinear transformation method; 3) FIR window function (Hanning window, Hamming window or Blackman window) is used to design.)
- 2019-04-19 10:03:16下载
- 积分：1
-
仿真Alamouti 的 BER 性能曲线
说明： 仿真Alamouti 的 BER 性能曲线（QPSK 调制）(Simulation BER of QPSK Alamouti STBC with two transmit and receive antenna)
- 2020-06-19 10:00:02下载
- 积分：1
