A Dual-Hierarchy Synchronization Method for Signal Preambles with High Detection Rates for Satellite-Based ADS-B Receivers with Different Sensitivities

Table 2

Interval radius under different SNRs.

SNR (dB)	<0	[0,1)	[1,2)	[2,3)	≥3
Interval	90	60	35	10	1

The is the interval radius of the coarse synchronization output according to the different SNRs.