A New Computing Paradigm for Off-Grid Direction of Arrival Estimation Using Compressive Sensing

Table 3

Grid mismatch case for four sources.

Amplitude and location		Grid resolution 1°		Grid resolution 0.5°		Grid resolution 0.1°		Grid resolution 0.01°
Amplitude	Source #		1.1805		0.3951		1.9998		1.9991
			0.8286		1.6061
	Source #		1.2950		0.7604		1.9997		1.9977
			0.7080		1.2409
	Source #		0.7446		1.9054		1.9990		1.9923
			1.2663
	Source #		0.2037		1.0556		1.9951		1.9631
			1.7768		0.9408
Location	30.4°		30°		30°		30.4°		30.4°
			31°		30.5°
	43.3°		43°		43°		43.3°		43.3°
			44°		43.5°
	60.5°		60°		60.5°		60.5°		60.5°
			61°
	80.7°		80°		80.5°		80.7°		80.7°
			81°		81°
Fitness		F1 = 3.0338		F2 = 3.7118		F 3 = 7.9938		F4 = 7.9523