Separating Algorithm of A/C Garbles in Time Domain for Multilateration

Multilateration is a new technology in air traffic control. Anti-jamming technology is important for multilateration systems. Signals for different targets will generate garbles which are main jamming in multilateration. This paper analyzes the features and laws of A/C garbles in time domain, defines pulse aliasing degree and pulse description words, and proposes a new algorithm to separate the aliasing pulses in time domain according to pulse width, amplitude and phase. The A/C transponders are separated totally after sub-pulses are cleared. At last, simulations show the efficiency of proposed algorithm.