The selected mapping which lowers the PAPR of traditional OFDM system is employed for OFDM systems based on FRFT.
探讨了该系统中使用选择映射法降低峰均比。
A new method that USES the tight support window signal together with the fractional Fourier transform (FRFT) is discussed.
主要讨论了一种将加紧支撑窗与分数阶傅里叶变换相结合的信号处理方法。
Principle of fractional Fourier transform (FRFT) and alternation to that linear modulate frequency (LMF) treatment advantage were introduced.
介绍了分数阶傅里叶变换的原理及其对线性调频信号的处理优势。
In the paper the amplitude characteristic of echo signal and its conjugate signal are analysis, based on that a detection method based on conjugated FRFT in sea clutter is proposed.
文中分析了回波信号以及其共轭信号的FRFT幅值特性，并利用此特性提出了一种基于共轭FRFT模函数对消的海面运动目标检测方法。
The FRFT has signal representation property both in space and frequency domain. The original image and the watermark is transformed with different orders to improve watermarking security.
分数傅里叶变换具有空域和频域双域表达能力，可以对原始图像和水印信号分别进行不同阶次的分数傅里叶变换以增强水印安全性。
In this paper, we first obtain the FRFT of the uniform impulse-train sampled signals, and based on it, we deduce sampling theorem and reconstruction formula for bandpass and lowpass signals with FRFT.
本文首先得到了均匀冲激串采样信号的FRFT，然后在此基础上导出了FRF T域上带通信号和低通信号的采样定理和重构公式。
In this paper, we first obtain the FRFT of the uniform impulse-train sampled signals, and based on it, we deduce sampling theorem and reconstruction formula for bandpass and lowpass signals with FRFT.
本文首先得到了均匀冲激串采样信号的FRFT，然后在此基础上导出了FRF T域上带通信号和低通信号的采样定理和重构公式。
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