scde-master
所属分类：matlab编程
开发工具：matlab
文件大小：1241KB
下载次数：8
上传日期：2016-01-12 02:34:38
上 传 者：
saptianr
说明： The computation of the time delay of arrival (TDOA) between each of the considered channels and the reference channel is repeated along the recording in order for the beamforming to respond to changes in the speaker. In this implementation it is computed every 250ms (called segment size or analysis scroll) over a window of 500ms (called the analysis window) which covers the current analysis segment and the next. The size of the analysis window and of the segment size constitute a tradeoff. A big analysis window or segment window lead to a reduction in the resolution of changes in the TDOA. On the other hand, using a very small analysis window reduces the robustness of the cross-correlation estimation, as less acoustic frames are used to compute it. The reduction of the segment size also increases the computational cost of the system, while not increasing the quality of the output signal.
文件列表:
paper (0, 2013-08-21)
paper\main-giti.pdf (1205025, 2013-08-21)
src (0, 2013-08-21)
src\GCC.m (7026, 2013-08-21)
src\apes.m (1346, 2013-08-21)
src\apesL.m (1161, 2013-08-21)
src\apes_test01.m (3335, 2013-08-21)
src\apes_test02.m (3318, 2013-08-21)
src\bpsk_test1.m (1603, 2013-08-21)
src\bpsk_test2.m (2055, 2013-08-21)
src\bpsk_test3.m (2540, 2013-08-21)
src\capon.m (1100, 2013-08-21)
src\capon2.m (1116, 2013-08-21)
src\capon2_test01.m (3271, 2013-08-21)
src\capon2_test02.m (3310, 2013-08-21)
src\caponL.m (1100, 2013-08-21)
src\caponL2.m (1233, 2013-08-21)
src\caponS.m (686, 2013-08-21)
src\capon_test01.m (3257, 2013-08-21)
src\capon_test02.m (3230, 2013-08-21)
src\corr_matlab.m (715, 2013-08-21)
src\correlation.m (738, 2013-08-21)
src\correlation2.m (1978, 2013-08-21)
src\correlation3.m (3307, 2013-08-21)
src\correlation4.m (2359, 2013-08-21)
src\corrmtx.m (3678, 2013-08-21)
src\hankel_backward.m (362, 2013-08-21)
src\hankel_foward.m (640, 2013-08-21)
src\hex2bin.m (1479, 2013-08-21)
src\lse.m (512, 2013-08-21)
src\mse01.m (5220, 2013-08-21)
src\mse02.m (4238, 2013-08-21)
src\mse03.m (3556, 2013-08-21)
src\mse_all.m (50, 2013-08-21)
src\mse_scd06-bak.m (19852, 2013-08-21)
src\mse_scd06.m (24675, 2013-08-21)
src\mse_scd12.m (20605, 2013-08-21)
src\ofdm_test1.m (8639, 2013-08-21)
... ...
# Spectral Correlation Density Estimation
This is a collection of Matlab/Octave scripts I implemented as part of my PhD
work. There are functions that implement common spectral estimators such as the
CAPON and APES estimators. There are also small experiments to generate OFDM,
BPSK, QAM signals and some utilities to obtain hankel matrices, correlation
matrices, etc. Refer to each file for more details on what they do.
The files with *_test* in their name are simple test cases to validate the other
scripts. The *powerspectra* and *res_* scripts are those I used to generate
graphs for my papers.
The paper folder contains one publication I wrote using these scripts. You may
refer to the references within there to understand better how these scripts
were implemented and how they work.
## Disclaimer
I recently found these files deep in my old hard disk while doing some cleanup.
I have no guarantees on the correctness of these scripts and I have long forgotten
how they work. Please use at your own risk and don't ask me how to use them
because I most likely won't remember.
## License
For all scripts implemented by me the MIT license applies. Other scripts may
belong to others so please refer to the license included on those scripts.
The MIT License (MIT)
Copyright (c) 2013 Horacio Sanson
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
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