[問題] 新手請教...已回收
function [max_v] = sim_tx_pulse_piston(x,y,z)
%%%%%%%%%%%%%%%%%%%%%% Acquire channel data %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
f0=3.5e6; % Transducer center frequency [Hz]
fs=100e6; % Sampling frequency [Hz]
c=1540; % Speed of sound [m/s]
lambda=c/f0; % Wavelength [m]
R=17.5/1000; % Radius of transducer
ele_size=1/1000; % Size of mathematical elements
Focal_radius=55/1000; % Focal radius
% 抽樣頻率
set_sampling(fs);
% 產生發射的孔
xmit_aperture = xdc_concave (R,Focal_radius,ele_size); % change to xdc_piston
% 確定發出孔的脈波、激勵
impulse_response=sin(2*pi*f0*(0:1/fs:2/f0));
impulse_response=impulse_response.*hanning(max(size(impulse_response)))';
xdc_impulse (xmit_aperture, impulse_response);
excitation=sin(2*pi*f0*(0:1/fs:20/f0));
%excitation=[1];
xdc_excitation (xmit_aperture, excitation);
% Do the calculation
[v,t]=calc_hp (xmit_aperture, [x y z]/1000);
plot([0:length(v)-1]/fs+t,v)
xdc_free (xmit_aperture)
以上是程式碼,原本的程式沒有最上面的function [max_v] = sim_tx_pulse_piston(x,y,z)
而且[v,t]=calc_hp (xmit_aperture, [x y z]/1000);中的x=0 y=0 z=55
我想將原程式弄成function讓我可以在之後的程式中變動xyz的值就得知其v的最大值
ps:原程式的其他FUNTION是 fieldII SIMULATION 中的
可這程式無法執行....
想問問題出在哪?
謝謝!!
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