摘要
针对线性调频信号相关检测副本信号与待检测信号可能不完全一致的情况,给出2种信号之间存在偏差时的互模糊函数与互相关函数,分析相位差、频偏、调频率偏差对相关检测性能的影响,得出相位差对检测性能没有影响,检测概率会随着频偏与调频率偏差的增加而降低的结论。
According to the possible difference of Linear Frequency Modulation（LFM） signal parameter between repetition and Signal of Interest（SOI）,the complex ambiguity function and cross correlation function when the deviation between repetition and SOI is existed are given.The influence of phase difference,frequency offset and chirp rate offset on performance analysis of correlation detection is analyzed.The conclusion indicates phase difference has no effects on detection and the detection probability decreases with the increase of frequency offset and chirp rate offset.
出处
《计算机工程》
CAS
CSCD
2012年第1期77-80,共4页
Computer Engineering
基金
国家重点实验室基金资助项目(9140C860304)
关键词
线性调频
相关检测
模糊函数
频偏
调频率偏差
Linear Frequency Modulation（LFM）
correlation detection
ambiguity function
frequency offset
chirp rate offset
