[DOI: 10.21982/M82K7J] Single Target Calibration Technique Code
This code calibrates the measured backscatter response of a point target using the Single Target Calibration Technique (STCT). The elements of the scattering matrix of the target must be measured coherently. The code loads all necessary measured data from files and manipulates the input data before performing calibration steps. The code needs measured data for the calibration target (metallic sphere) and the measured data for the unknown target (target under test) that is intended for calibration. All in ascii format. It requires two measured data files for the cal_target (sphere). One of the files contains the measured sphere data and the 2nd file contains the measured background data (without sphere). It also requires two data files for the unknown target (or target under test) intended for calibration. One file is for measured target data and the 2nd file holds background data. All files hold the measured complex scattering matrix. Background data may be ignored, however the user must modify the code to permit this step. Additional information that must be inputted by the user are sphere size, range to sphere, range to unknown target, start and stop frequencies, and number of frequency points used. Samples of input and output data are included. main code: stct_calibr_maincode.m second. code: RCSmetallic_sphere.m Calibr. target data: cal_target_data.dat (8 inch sphere) Unknown target data: target_12inchSphere_data.dat Sample output plot: CalibratedResponse_12inchSphere.eps
Code Link: stct.zip
Code Size: 153154 bytes
Code MD5 Checksum: eb9c3cc5eeeb7af291a5f489b482af06
Appears in: K. Sarabandi and F. T. Ulaby, “A convenient technique for polarimetric calibration of radar systems,” IEEE Trans. Geosci. Remote Sensing, vol. 28, no. 6, pp. 1022-1033, Nov., 1990.
Code Languages: Other - matlab
To compile code: No specific requirements.
Sensor Categories: Scatterometer
Instrument Processing and Calibration Categories: Scatterometer
Keywords: calibration, radar, instrumentation,