function?[Dynamic_Mass_MModal_Mass_MSystem_EigenvalueSystem_Modal_damper_angular_freqencySystem_Modal_Angular_FreqencySystem_Modal_Damper_Ratio?System_Modal_ShapeSystem_recession_coefficientMACMPC]=ERA（YDatasampling_frequencyHz）
%this?is?a?ERA?algorithm?funciton?for?Modal?analysis
%?Attention?to?the?formate?of?input?data
%?YData?is?1*n??sampling_frequencyHz?is?1*1
%By?Chen?yi?Jan.?24th2004
%??State?Key?lab?of?Mechanical?Transmission??Chonqqing?University
%????chen_yi2000@sina.com
YData=YData‘;

[MMNN]=size（YData）;
if?MM~=1
????disp（‘The?YData?must?be?a?vector?（1*n）‘）;
???return;
else
????disp（‘Input?Data?is?ok....‘）
sampling_step=1/sampling_frequencyHz;
%?generate?hankel?matrix????
H0=hankel（[YData（1:NN-1）]）;
H1=hankel（[YData（2:NN）]）;

[HankelMMHankelNN]

?屬性????????????大小?????日期????時間???名稱
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?????文件????????996??2004-02-09?18:07??ERA模態參數識別\ERA_toolbox\@@@@ERA_readme@@@@.txt

?????文件???????5727??2004-01-31?13:57??ERA模態參數識別\ERA_toolbox\ERA.asv

?????文件???????5886??2004-01-31?14:38??ERA模態參數識別\ERA_toolbox\ERA.m

?????文件???????5792??2004-01-31?14:32??ERA模態參數識別\ERA_toolbox\ERA_StartDemo.asv

?????文件???????7188??2004-01-31?14:36??ERA模態參數識別\ERA_toolbox\ERA_StartDemo.m

?????文件????????408??2004-02-09?18:13??ERA模態參數識別\ERA_toolbox\MAC.txt

?????文件???????1804??2004-02-09?18:13??ERA模態參數識別\ERA_toolbox\Modal_Mass_M.txt

?????文件????????415??2004-02-09?18:13??ERA模態參數識別\ERA_toolbox\MPC.txt

?????文件????????731??2004-01-29?12:07??ERA模態參數識別\ERA_toolbox\normaldata_generater.m

?????文件????????783??2004-01-31?13:46??ERA模態參數識別\ERA_toolbox\norsindata_generater.asv

?????文件????????897??2004-01-31?13:48??ERA模態參數識別\ERA_toolbox\norsindata_generater.m

?????文件??????????2??2004-01-31?12:03??ERA模態參數識別\ERA_toolbox\sampling_frequencyHz.txt

?????文件??????????1??2004-01-29?11:52??ERA模態參數識別\ERA_toolbox\sampling_time.txt

?????文件????????720??2004-01-29?11:46??ERA模態參數識別\ERA_toolbox\sindata_generater.m

?????文件????????828??2004-01-29?11:46??ERA模態參數識別\ERA_toolbox\stepdata_generater.m

?????文件??????11792??2004-02-09?18:13??ERA模態參數識別\ERA_toolbox\System_Eigenvalue.txt

?????文件???????1806??2004-02-09?18:13??ERA模態參數識別\ERA_toolbox\System_Mass_M.txt

?????文件??????13016??2004-02-09?18:13??ERA模態參數識別\ERA_toolbox\System_Modal_Parameters.txt

?????文件???????5305??2004-02-09?18:13??ERA模態參數識別\ERA_toolbox\System_Shape.txt

?????文件???????1161??2004-01-31?13:48??ERA模態參數識別\ERA_toolbox\YData.txt

?????目錄??????????0??2010-05-13?21:23??ERA模態參數識別\ERA_toolbox

?????目錄??????????0??2010-05-13?21:24??ERA模態參數識別

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