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5-9--14
we address the design of economical
recursive generalized comb filters (GCFs) by proposing an ef-
ficient technique to quantize the multipliers in the z-transfer
function employing power-of-2 (PO2) terms. GCFs are efficient
anti-aliasing decimation filters with improved selectivity and
quantization noise rejection performance around the so-called
folding bands with respect to classical comb filters. The proposed
quantization technique guarantees perfect pole–zero cancelation
in the rational z-transfer function of the GCFs, thus totally
avoiding instability problems. Moreover, we propose the use of a
simple droop compensator for the sake of recovering the passband
droop distorting the useful digital signal in the baseband. A design
example is proposed with the aim of showing the application of
the proposed technique, and a practical architecture of a sample
third-order GCF is discussed.
- 2014-09-05 14:49:45下载
- 积分:1
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CWavvelet_Esta
计算时间序列的Hurst系数有许多方法,但是其中最准确的就是运用小波法来计计算,本程序源码用Matlab实现了用小波来计算Hurst系数。
(There are many ways of calculating the Hurst coefficient of time series, but one of the most accurate calculation using wavelet method to count the program source code using Matlab achieve wavelet Hurst coefficient.)
- 2012-08-23 20:57:02下载
- 积分:1
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m12_3
为了改善噪声e(k)为有色噪声模型的系统参数估计的统计特性,提出了一种增广矩阵的方法,称为增广最小二乘算法,MATLAB实现范例(In order to improve the noise e (k) for the colored noise model of the system parameters estimated statistical characteristics, an Augmented Matrix method, called Augmented Least Squares, MATLAB implementation examples)
- 2009-03-12 11:16:06下载
- 积分:1
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fli2
付里叶变换的频移特性;付里叶变换的时域卷积特性(Fourier transform of the frequency shift characteristics the Fourier transform of time domain convolution properties)
- 2010-05-06 12:01:15下载
- 积分:1
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DWT
discrete wavelet transform
- 2015-04-19 23:35:19下载
- 积分:1
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main_no_offset_2
假设截获了一段短波数字通信的信号,要求解调出最终的信息,每组解调出来后,将10组信息组合起来,恢复最终的信源输出数据。
先验信息:两组数据文件,编号为1、2,每组I、Q两路存放,格式为“int16”,采样率为9600Sa/s,其中第一组为单径情况,第二组为多径情况。
参数符合MIL-STD-188-110A标准;
同步序列为syn=seq.dat,BPSK调制;
接收机频率稳定度高于1e-6。
文件中有效信息总长度为333.75s,其中同步头长为5/12s,每时隙1/6s,训练序列占10 ,在数据之前;
交织方式为全交织,矩阵交织,列为1000,在比特级进行;
纠错码码率为1/2;
调制方式为BPSK、QPSK和8PSK中的一种,映射方式为二进制,BPSK相位偏移为0,其余两种为 。
(Suppose intercepted signal for a period of short-wave digital communications requires final demodulated information after each demodulated, combining 10 group information, to restore the final output data source.
Priori information: two sets of data file, numbered 1, 2, each I, Q two-way storage, the format is int16 , sampling rate 9600Sa/s, where the first group is a single path, the second group multipath situation.
Parameters meet MIL-STD-188-110A standard
Synchronization sequence syn = seq.dat, BPSK modulation
The frequency stability of the receiver is higher than 1e-6.
File payload total length of 333.75s, wherein the synchronization header length is 5/12s, each time slot 1/6s, accounting for 10 of the training sequence, before the data
Interleaving for the whole interleaving matrix interleaving, as 1000, carried out at the bit level
Error correction code rate of 1/2
The modulation scheme is BPSK, QPSK and 8PSK one, a binary mapping, the BPSK phase offset is 0, the )
- 2016-06-20 19:12:40下载
- 积分:1
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pc_yuan
线性调频信号(LFM)的脉冲压缩相当于进行匹配滤波,改程序实现该功能。(Chirp signal (LFM) pulse compression is equivalent to the matched filter, change the program to achieve this function)
- 2015-01-03 10:22:00下载
- 积分:1
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遗传算法
说明: 遗传算法的一些实现案例,包括函数优化,目标分配等问题(Some implementation cases of genetic algorithm, including function optimization, target assignment and so on)
- 2021-04-07 23:34:04下载
- 积分:1
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BlindEqualization
Raúl Casas(康奈尔大学)论文:盲均衡(Blind Adaptive Decision Feedback Equalization A Class of Bad Channels)
- 2009-05-08 16:35:43下载
- 积分:1
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Planoconvex
lens matlab
二次光学设计中的透镜设计,根据非成像光学原理,利用matlab计算生成点坐标,导入TP(lens matlab)
- 2013-11-04 12:54:36下载
- 积分:1