Dear all,
Does anyone know how to set the center frequency and bandwidth of the transducer in k-wave simulation.
I tried two Settings as follows:
(1) Add the following statement before performing the kspaceFirstOrder2D:
fc = 1e6 ; % [Hz]
Bw = 70 ; % [%]
sensor.frequency_response = [fc Bw] ;
sensor_data = kspaceFirstOrder2D(kgrid, medium, source, sensor, input_args{:});
(2) Firstly, kwave simulation is carried out, and then signal processing is carried out：
sensor_data = kspaceFirstOrder2D(kgrid, medium, source, sensor, input_args{:});
center_freq = 1.0e6; % [Hz]
bandwidth = 70; % [%]
sensor_data_gaussian = gaussianFilter(sensor_data, fs, center_freq, bandwidth);
I find that the final result is the same. Is there anything wrong with it？