资源简介
Kullback-Leibler距离.KLD-Sampling粒子滤波算法.该算法在保证一定 滤波精度的前提下,可以有效地减少滤波过程中使用的粒子数,从而减小滤波时间,提高滤波效率.
代码片段和文件信息
% kld_sampling - a matlab class to aid in KLD Sampling.
% Constructor
% sampler = kld_sampling(quantile err bin_size sample_min)
% Update sampler returns estimated # of samples needed
% kld_samples = sampler.update(objsamples)
%
% See test.m or test2d.m for example usage.
% Note: This version doesn‘t follow Fox strictly as it allows the update
% of multiple samples on each iteration. It (very slightly)
% overestimates the number of samples needed but at great speedup
% since we more efficiently search the database of supported bins.
% Copyright 2013 - open source BSD License - see license.txt for details
% by K. Nickels knickels@trinity.edu 12/16/2013
% Original Copyright Notification
%/*********************************************************************
% KLD-SAMPLING: Adequately Sampling from an Unknown Distribution.
% Copyright 2006 - open source BSD License - see license.txt for details
% Copyright (C) 2006 - Patrick Beeson (pbeeson@traclabs.com)
%
% Ported to Matlab from C++ K. Nickels 2013 (knickels@trinity.edu)
% Initial port v0 10/2/13 K Nickels
% Update v1 10/3/13 K Nickels more matlabification (speedup 6)
% Update v2 10/4/13 K Nickels generalize to batch updates (speedup 2)
% Release v3 12/16/13 K Nickels
% *********************************************************************/
classdef kld_sampling < handle
properties
confidence max_error;
bin_size=[]; % vector of bin sizes (in each dim)
bins = [[]]; % bins is matrix for support - each row is a samplebin
num_samples;
support_samples kld_samples;
zvalue;
end; % properties
properties(Constant)
absolute_min=10;
ztable = [ 0.0000000e+00 3.9900000e-03 7.9800000e-03 1.1970000e-02 1.5950000e-02 1.9940000e-02 2.3920000e-02 2.7900000e-02 3.1880000e-02 3.5860000e-02 3.9830000e-02 4.3800000e-02 4.7760000e-02 5.1720000e-02 5.5670000e-02 5.9620000e-02 6.3560000e-02 6.7490000e-02 7.1420000e-02 7.5350000e-02 7.9260000e-02 8.3170000e-02 8.7060000e-02 9.0950000e-02 9.4830000e-02 9.8710000e-02 1.0257000e-01 1.0642000e-01 1.1026000e-01 1.1409000e-01 1.1791000e-01 1.2172000e-01 1.2552000e-01 1.2930000e-01 1.3307000e-01 1.3683000e-01 1.4058000e-01 1.4431000e-01 1.4803000e-01 1.5173000e-01 1.5542000e-01 1.5910000e-01 1.6276000e-01 1.6640000e-01 1.7003000e-01 1.7364000e-01 1.7724000e-01 1.8082000e-01 1.8439000e-01 1.8793000e-01 1.9146000e-01 1.9497000e-01 1.9847000e-01 2.0194000e-01 2.0540000e-01 2.0884000e-01 2.1226000e-01 2.1566000e-01 2.1904000e-01 2.2240000e-01 2.2575000e-01 2.2907000e-01 2.3237000e-01 2.3565000e-01 2.3891000e-01 2.4215000e-01 2.4537000e-01 2.4857000e-01 2.5175000e-01 2.5490000e-01 2.5804000e-01 2.6115000e-01 2.6424000e-01 2.6730000e-01 2.7035000e-01 2.7337000e-01 2.7637000e-01 2.7935000e-01 2.8230000e-01 2.8524000e-01 2.8814000e-01 2.9103000e-01 2.9389000e-01 2.9673000e-01 2.9955000e-01 3.0234000e-01 3.0511000e-01 3.0785000e-01 3.1057000e-01 3.1327000e-01 3.1594000e-01 3.18590
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 3116 2013-12-17 21:05 README
文件 1926 2013-12-16 23:08 info.xm
文件 10788 2013-12-17 21:07 kld_sampling.m
文件 2776 2013-12-17 21:07 test.m
文件 3225 2013-12-17 21:07 test2d.m
文件 1329 2014-02-12 14:41 license.txt
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