Laboratory generation of rayleigh fading

Abstract

Mobile radio channel simulators are essential for repeatable system tests in a development, design, or test laboratory. Due to the random, uncontrollable nature of the mobile propagation path, it is difficult to generate repeatable Held test results. Also doing Held tests in a mobile environment is considerably more expensive. An approach for hardware simulation of Rayleigh lading is presented in this thesis. The heart of the simulator is a Digital Signal Processor (DSP), which implements the random noise and the digital filtering necessary for the generation of a Rayleigh faded signal. The results indicate that the proposed hardware simulator can simulate Rayleigh fading with a high degree of accuracy. The envelope of the generated Rayleigh fading had been observed by an Oscilloscope. I lie observations have been done also for carrier frequency of 900MHz..