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阈值1
采用差分阈值法对心电信号QRS波进行特征提取的matlab程序。,Differential threshold method QRS wave of ECG feature extraction of matlab program.(A matlab program for feature extraction of QRS wave of ECG signal by differential threshold method is presented.)
- 2020-06-16 03:00:01下载
- 积分：1
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fft
正交频分复用系统中信号的调制与解调，我们用傅里叶反变换和变换来实现(Orthogonal frequency division multiplexing system signal modulation and demodulation, and we use the inverse Fourier transform to achieve transform)
- 2013-07-18 11:42:59下载
- 积分：1
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B1C
MATLAB代码，完整实现北斗B1C信号的从捕获、跟踪到定位的全部过程。代码鲁棒性好，有注释，适合学习，也可直接使用(MATLAB code, fully realize the whole process of Beidou B1C signal acquisition, tracking and positioning. Code is robust, annotated, suitable for learning, and can be used directly.)
- 2021-04-28 18:08:43下载
- 积分：1
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4
说明： ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2
种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本
思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列
的算法有较高的估计精度，但降纸了系统传输效率。(Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundational methods
。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency
ofset are analyzed．Then it discusses their basic thoughts。implementing methods and simulation resuits．
Finally。merits and demerits of every algorithm are supposed．It concludes that the cycling prefix—
based algorithm has less complexity and less precision。and that the training sequence—based algorithm
has better estimation performance at the cost of transmission efficiency．)
- 2010-05-18 18:34:44下载
- 积分：1
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model4_2_screwThreadm
说明： 沿螺钉螺旋线提取ct图像中的椎弓根骨密度(extraction of pedicle bone mineral decsity from CT images along screw helix)
- 2019-04-29 21:22:22下载
- 积分：1
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16 WCDMA码分多址通信系统
说明： WCDMA码分多址通信系统的matlab仿真以及结果(Matlab simulation and results of WCDMA code division multiple access communication system)
- 2020-07-01 20:20:01下载
- 积分：1
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MskModem
说明： MSK信号的调制与解调，根据书上的代码进行了修改，非常详细(Modulation and demodulation of MSK signal)
- 2020-05-07 10:46:55下载
- 积分：1
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jian
说明： 整个仿真系统是从发射端、瑞利信道、接收端大致的过程(The entire simulation system is a rough process from the transmitter, the Rayleigh channel, and the receiver)
- 2020-08-25 16:21:59下载
- 积分：1
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vij1
function ber_ml=Alamoudi(snr,soglia)
This function simulates a Alamouti scheme. The input variables are soglia and snr.
Soglia: is the number of errors after which the iterations stop. For better results, put high value of soglia, but
the simulation is longer.
snr: the signal to noise ratio (if u don t know what is a signal to noise ratio, well, come back to your high school!).
Note: U should use this function with a main function in wich u chose different value of snr. That s because this
function work just with one value of snr.
If u have problem with this code, write me at m.allegritti@email.it.
Take care!
Max
- 2010-02-06 17:26:08下载
- 积分：1
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QPSK定时同步代码，采用Gardner定时同步算法 qpsk_demod
QPSK定时同步代码，采用Gardner定时同步算法，Farrow插值算法(QPSK timing synchronization code, using Gardner timing synchronization algorithm, Farrow interpolation algorithm)
- 2021-02-03 10:19:59下载
- 积分：1
