Study on Simulation Based on GPS Base Band Signals Acquisition Algorithm
Aiming at navigation needs in low signal to noise ratio environment,GPS base band signals acquisition algorithm in low signal to noise ratio environment is introduced,signals process flow and acquisition performance of algorithm based on circular correlation are studied in detail.The real GPS data is obtained by means of the special equipment,the acquisition algorithm is simulated using matlab.It can be seen from theoretical analysis and simulation that GPS base band signals acquisition algorithm based on circular correlation is capable of detecting GPS signals in low signal to noise ratio environment,and improving detection sensitivity of GPS receiver.