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大程序
说明: 迭代信道估计,ls信道估计方式 MMSE均衡 迭代了四次(4times iterative channel estimation with LS and MMSE)
- 2020-07-30 07:48:00下载
- 积分:1
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spatial modulation
a matlab code for spatial modulation
- 2017-09-16 01:09:55下载
- 积分:1
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PCM
在实际的调谐解调电路中,采用的是非相干载波解调,本振信号与发射端的载波信号存在频率偏差和相位抖动,因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决,得到的数字信号也不是原来发射端的调制信号,误差的积累将导致抽样判决后的误码率增大,因此数字QPSK解调电路要对载波误差进行补偿,减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)
- 2019-01-30 20:16:08下载
- 积分:1
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FECOFDM
说明: A Study on effect of FEC for OFDM transmission
using one GI per multiple blocks
- 2019-05-12 14:26:08下载
- 积分:1
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ACCF
迭代ACCF相参积累与参数估计,SAR回波,只加了噪声(Iterative ACCF coherent accumulation and parameter estimation)
- 2018-04-26 09:33:04下载
- 积分:1
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SeaSon_from_HIT
SeaSon from DB-LAB of HIT
介绍的方法是以在cygwin中安装gdb为例说明。(SeaSon from DB-LAB of HIT is based on the method described to install gdb on cygwin an example.)
- 2010-11-04 16:31:49下载
- 积分:1
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timing_GAD_16QAM
16QAM调制信号的GAD定时恢复,对定时恢复环路的验证和实现(Gardner Timing Recovery for 16QAM)
- 2013-10-12 15:36:55下载
- 积分:1
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5
说明: 5. 在三条径的瑞利信道中,对于直接序列扩频:
(1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法,接收机分别采用等均益合并、最大比合并。用Simulink进行仿真,画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。
(2) 设频率已经同步,请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法,用Simulink进行仿真,画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已经同步,请设计DS-CDMA一种具体的频率同步方法,用Simulink进行仿真,画出比特信噪比与频率同步误差的关系曲线。(5. In three-path Rayleigh channel, for direct sequence spread spectrum:
(1) please design a specific code division navigation aided channel estimation method for ds-cdma, and adopt equal-beneficial combination and maximum ratio combination for receivers respectively.Simulink is used to simulate and draw the relationship curve between bit SNR and channel estimation mean square error and the relationship curve between bit SNR and bit error rate.
(2) assuming that the frequency has been synchronized, please design a specific single-stop sliding correlation time synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and the acquisition probability curve.
(3) if the time has been synchronized, please design a specific frequency synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and frequency synchronization error curve.)
- 2019-01-15 10:58:23下载
- 积分:1
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modem
A differential QPSK modem using the TMS320C6711 DSK
- 2012-09-30 03:01:43下载
- 积分:1
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colea444
This includes how to protect the speaker using matlab functions.
- 2010-03-03 09:21:36下载
- 积分:1