Mobile Organizational Network Physical Layer Receiving Unit Channel Parameter Estimation And Decoding Unit

This paper is focus on the implementation of receiver unit of physical layer of MANET on DSP. At first, we present the structure and feature of MANET, summarized the communication pattern and received scheme of it. Secondly, Maximum Likelihood frequency estimation and channel estimation base on Midamble field is shown aimed at burst transfer pattern of MANET, give in detail of its implementation on DSP. Base on analyzing of receive process, developed a interrupt servicing system and a bus transferring system. After all, we implementation a Turbo decoding unit make use of co-processor TCP(Turbo Coding Processor) of DSP. At last, given in detail of hardware debugging process, its include combine each module of DSP, Base-band debugging of self-cycling, Base-band debugging of Tran-ceiving unit.