Linear cyclostationary analysis of noncoherent direct-sequence code tracking in pulsed jamming
H. Tsou, Raimundo Sampaio‐Neto, R.A. Scholtz · 2003
The performance of two direct-sequence code tracking systems operating in the presence of background thermal noise and a pulsed wideband noise jammer is presented. One system has a front-end automatic signal-level control, while the other has no such signal strength protection in front of the loop. The pulsed jammer is modeled as a cyclostationary interference, which makes it possible to directly explore not only the impact of the jammer's parameters, such as duty factor, repetition frequency, and jamming power level, but also the effectiveness of the front-end automatic signal-level control, on the tracking loop's behavior. The two systems are examined under linearized performance analysis of loop operation, and compared with each other.>