CAJ | 학술논문

实时性是评定声定位智能引信性能的重要指标.分析了DSP芯片、定位阵列和定位算法三个影响智能引信实时性的因素.对比了采用TI库函数和C语言完成互相关算法和FFT算法所需的时钟周期数,证明库函数效率高,实时性好,具有很明显的优势.结果表明使用库函数可以在ms级完成广义互相关算法,并通过对比各种加权函数的耗时,为加权函数和采样点数的选择提供依据.
실시성시평정성정위지능인신성능적중요지표.분석료DSP심편、정위진렬화정위산법삼개영향지능인신실시성적인소.대비료채용TI고함수화C어언완성호상관산법화FFT산법소수적시종주기수,증명고함수효솔고,실시성호,구유흔명현적우세.결과표명사용고함수가이재ms급완성엄의호상관산법,병통과대비각충가권함수적모시,위가권함수화채양점수적선택제공의거.
Real-time is a very important indicator to assess performance of acoustic positioning smart fuze.Analysis three factors,the DSP chip、location array、location algorithm,which impact smart fuze's real-time.Compare the number of clock cycles required in the case of using TI's own library functions and C language to complete correlation algorithm and FFT algorithm.Proving that library function is efficient,good real-time,and have a very distinct advantage.Using library functions can complete generalized cross-correlation algorithm in ms-class,and by comparing the time-consuming of various weighting functions,provide the basis for the choice of weighting function and sampling stints.