欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了减少分数阶Fourier域线性调频（LFM）信号处理的计算量,满足实时性要求,提出了一种新的非均匀采样方法.与传统的非均匀采样方法相比,该方法既解决了整个采样时段内由于过采样造成的数据冗余性,也消除了信号时变特征造成的局部冗余性.最后,应用该方法得到了非均匀采样LFM信号在分数阶Fourier变换域的频谱表达式,并对不同信噪比（SNR）条件下信号的检测概率进行了研究.结果表明,该方法具有较好的抗噪声能力.
英文摘要：
In order to reduce the computational quantity of the processing of the LFM signal in fractional Fourier domain and to meet the real-time request, a new nonuniformly sampling method is proposed. Compared to traditional nonuniformly sampling method, this method solves the problem of redundant data due to over-sam- piing in the whole sampling period, and eliminates the partial redundance caused by signal time-variant feature. In the end, the spectrum expression of nonuniformly sampled LFM signal in the fractional Fourier domain is de- rived, and the detection probability of the signal in the case of different SNR is studied. The results show that the method proposed is able to resist noise.
同期刊论文项目
同项目期刊论文
Image Encryption Based on the Multiple-Parameter Discrete Fractional Fourier Transform and Chaos Fun
Detection and Parameter Estimation of Multicomponent LFM Signal Based on the Fractional Fourier Tran
Sampling and Sampling Rate Conversion of Band Limited Signals in the Fractional Fourier Transform Do
期刊信息
位置：