短基线时差法测向技术因其原理简单而早就被提出来了,但由于受到器件水平的限制,对影响测向精度的到达时间差的测量处理精度一直不能得到有效解决,从而影响了这种测向体制的发展和应用。系统全面分析了影响测向精度的原因,并从理论上重点推导了各种因素对到达时间差的影响。 Because of its simple principle, the short baseline time-difference method has been proposed for a long time. However, due to the limitation of the device level, the accuracy of the measurement of the time difference affecting the DF accuracy can not be effectively solved, thus affecting this Development and Application of Orientation System. The system comprehensively analyzes the reasons that affect the accuracy of the direction finding, and deduces the influence of various factors on the arrival time difference theoretically.