Generation Mechanism and Characteristic Analysis of Dual-Frequency Pseudo-Signal Interference of the Swept-Frequency Radar

Table 2

Test results of the out-of-band dual-frequency second-order intermodulation “hill” pseudo-signal.

	Interference field strength 1 (dBV/m)	Interference field strength 2 (dBV/m)	Pseudo-signal level (dBmV)	Pseudo-signal center distance (m)
Transmit signal attenuation 30 dB	−15	−15	3.35	2419
	−12	−12	7.93	253.4
	−9	−9	12.65	2920
	−6	−6	15.93	3211
	−3	−3	15.97	1154
	0	0	16.11	926.2
Transmit signal attenuation 40 dB	−14	−14	4.17	540.7
	−11	−11	9.85	2175
	−8	−8	13.95	1243
	−5	−5	15.59	2432
	−2	−2	15.85	2376
	0	0	15.99	2428