Abstract We propose a single channel blind source separation algorithm for convolutively mixed linear frequency modulation (LFM) signals based on smoothed Wigner-Ville distribution (SWVD) time-frequency analysis, Canny edge detection, and Hough transform detection. First, the SWVD analysis diagram is obtained as an image LFM characteristics. Second, detection performed image. Then, used to dete...

The development of effective remote sensing data authentication techniques is of remarkably growing interest. Several existing authentication algorithms have been reported as insecure, yielding inaccurate attack localization, and vulnerable to various attacks, especially the blind pattern matching attack. with insufficient security. In this paper, we propose a new pseudorandomly-shaped polygons...

This paper presents an electronic travel aid for blind people to navigate safely and quickly, an obstacle detection system using UVC camera based visual navigation has been considered. The proposed system detects the obstacles up to 300 cm via sonar and sends feedback in form of beep sound to inform the person about its location. In addition to this, an UVC webcam is connected to 32 bit ARM mic...