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costas_pYll_qpsk_1
这是一个costas实现的QPSK解调器，这个解调器可以实现一个QPSK调制信号的解调！(it is about a demodulator for QPSK！)
- 2012-01-06 22:18:51下载
- 积分：1
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一种基于高阶累积量的数字调相信号识别方法
说明： 对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)
- 2020-06-21 09:40:02下载
- 积分：1
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Labview+USRP平台下实现OFDM收发信号
实现基于软件无线电的OFDM系统仿真，利用USRP平台实现收发信号(The simulation of OFDM system based on software radio is realized, and the transceiver signal is realized by USRP platform.)
- 2018-04-09 15:39:27下载
- 积分：1
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read GPS rinex file
读GPS卫星星历文件，通过星历计算卫星位置(Read the GPS satellite ephemeris file and calculate the satellite position by ephemeris)
- 2021-04-24 23:08:46下载
- 积分：1
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GPS信号捕获跟踪算法
GPS_signal_acq_track
GPS信号捕获跟踪算法，GPS跟踪捕获可参考资料(GPS signal acquisition and tracking algorithms, GPS tracking can capture references)
- 2014-03-29 23:16:16下载
- 积分：1
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kalmen-GPS-Kinematical-and-static
卡尔曼滤波GPS静动态滤波实验的实验程序和数据(The kalman filter for GPS static and dynamic experimental program and data filtering experiment)
- 2020-11-23 19:29:34下载
- 积分：1
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base_band_signal
该程序产生不同的数字调制信号，属于功放预失真中比较关键的程序(This program generates differents digital modulated signal. It belongs to the key program in DPD.)
- 2013-06-26 14:38:38下载
- 积分：1
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work
MATLAB算法仿真。自适应陷波滤波器去除单一频率的干扰。并且频率可调整。自适应信号处理。外加上一个讲义呵呵(MATLAB notch filter to trid off single frequency)
- 2009-11-26 09:40:34下载
- 积分：1
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新建文件夹
利用连续两张图片中莫尔条纹实现位移测量，对条纹区域像素灰度值采用正弦函数拟合(Moire fringe displacement measurement in two consecutive pictures, fitting the gray value of pixels in fringe region with sinusoidal function.)
- 2018-12-19 15:53:01下载
- 积分：1
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gps1
simulink gps信号生成 信号包括CA码，D码，导航电文(simulink gps signal generating signals include CA code, D code, navigation message)
- 2013-05-29 12:01:00下载
- 积分：1
