The servo-control system of angular position is widely used in CNC and automatic control of artillery

and usually realized by selsyn.On special occasions of difficult wiring

it is necessary to adopt wireless way to realize servo control on remoted-end mechanical structure.A wireless servo control system is designed

and anti-interference and tracking precision problem of the system is studied experimentally.The dynamic signal of angular position acquired by MEMS gyro and accelerameter is processed by adaptive complementary filtering

which is implemented on ARM MCU.The anti-interference of system is improved by frequency hopping programming on wireless transmission module nRF24L01.In addition

use DC servo motor to drive tracking mechanism

and remote visualization remote control is realized by wireless video module.The experimental results show that the system works stability

angular position tracking error is less than 0.3°

servo response time is less than 15ms

and the wireless servo distance is 500m（intervisibility）.