Direct Data Domain Sparsity-Based STAP Utilizing Subaperture Smoothing Techniques

Table 1

Radar system parameters.

Parameter	Value
Antenna array	side-looking ULA
Antenna array spacing
Number of elements in ULA
Number of pulses in one CPI
Carrier wavelength	m
Instantaneous bandwidth	MHz
Transmit taper	Uniform
Pulse repetition frequency (PRF)	4000 Hz
Platform velocity	300 m/s
Platform height	3000 m
Clutter-to-noise ratio (CNR)	30 dB
The target AOA	0°