Application of CPLD in infrared photoelectric target

Some problems brought voice by flying insects are discussed.After the theoretical analysis, the conclusion is gotten that the voice ,insects and bullets will result in defferent output of photoelectric target.On the basis of this,a resisting disturbance circuit is proposed with CPLD and applied in engineering project.The simulative analysis and practical application demonstrate that disturbance brought about the voice and flying insects is effectively restricted and the disturbance restriction ability of circuit is greatly improved,which ensures reliable and accurate of measurement result.