超声测距，单发单收，主要运用gabor变换法，也用了其它方法，精度可以达到0.3厘米，运行main程序可以得到完整结果。(Ultrasonic ranging, single shot single collection, the main use of Gabor transform method, also used other methods, cited papers packaged together The accuracy can be up to 0.3 cm, and