-
利用伪随机序列作为发送信号 dppl
说明： 利用伪随机序列作为发送信号，经过信道，产生了频偏和相位偏移，利用数字锁相环的原理实现对信号的频率估计和相位估计，实现信号的载波同步。(The frequency offset and phase offset are generated by using pseudo-random sequence as the transmitting signal through the channel. The frequency estimation and phase estimation of the signal are realized by using the principle of digital phase-locked loop, and the carrier synchronization of the signal is realized.)
- 2018-12-27 10:59:33下载
- 积分：1
-
LDPC_802.16e仿真代码
可以产出LDPC_802.16e码字，不同码长不同码率(creat LDPC_802.16e ldpc code)
- 2018-06-13 12:00:48下载
- 积分：1
-
c-c算法可计算关联维数
c-c算法可计算关联维数，延迟时间，嵌入维数等，对混沌分析有很大的意义(The C-C algorithm can calculate correlation dimension, delay time, embedding dimension and so on, which is of great significance for chaos analysis.)
- 2018-05-02 20:43:41下载
- 积分：1
-
stanag5066.pdf.tar
STANAG 5066 unclassified
- 2011-06-09 21:25:22下载
- 积分：1
-
2dfft
c++ source
fft ifft
2-d FFT
ofdm
- 2013-12-08 16:47:48下载
- 积分：1
-
Clarke_Jakes_Zheng模型matlab仿真
说明： Clarke_Jakes_Zheng模型matlab仿真(Clarke_Jakes_Zheng-matlab)
- 2020-01-06 10:02:08下载
- 积分：1
-
27049891
viterbi卷积码编码,译码,调试通过,可以直接使用(Viterbi convolutional code coding, decoding, debugging pass, can be used directly)
- 2019-03-27 07:23:22下载
- 积分：1
-
16QAM 64QAM信号产生及分析
说明： 16QAM信号 64QAM信号的产生和分析，星座图，频谱，功率谱(6QAM signal 64QAM signal generation and analysis, constellation, spectrum, power spectrum)
- 2020-12-07 20:59:21下载
- 积分：1
-
msk
利用锁相环来实现MSK信号的定时同步，采用的是gardner算法(Using phase-locked loop to achieve timing synchronization of MSK signal, Gardner algorithm is adopted.)
- 2021-04-07 20:19:01下载
- 积分：1
-
6
说明： 6. 在三条径的瑞利信道中，对于OFDM：
(1) 请设计一种具体的导引辅助的信道估计方法，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) 设频率已同步，请设计OFDM一种具体的采用循环前缀进行时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已同步，请设计OFDM一种具体的采用循环前缀进行频率同步方法，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。(6. In the three-path Rayleigh channel, for OFDM:
(1) please design a specific navigation-assisted channel estimation method and use Simulink for simulation.The relation curves of bit signal-noise ratio and channel estimation mean square error and the relation curves of bit signal-noise ratio and bit error rate are drawn.
(2) if the frequency has been synchronized, please design a specific method of time synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit-snr and acquisition probability.
(3) if time has been synchronized, please design a specific method of frequency synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit signal-to-noise ratio and frequency synchronization error.)
- 2019-01-15 10:59:38下载
- 积分：1
