一种低速信道模拟高速信道的方案

Field test in high speed environments is very difficult. To make the field test more feasible, this paper presents a method to extend the low speed field test system to estimate the measured data in high speed condition through an additional baseband processor, without changing the major parts of the base stations. The additional baseband processor changes the characteristics of the low speed signal through adding proper Doppler shift into the signal. In this paper, the system is introduced and the baseband model is discussed in detail. Simulation results are presented and discussed.