Shipborne Navigation Radar Embedded Software Design

One of the developing trends about marine navigation radar is the adoption of computers such as embedded processor and digital signal processor. This paper describes the design and implementation of a marine navigation radar system based on embedded processor and digital signal processor.Chapter one discusses the development trend of marine navigation radar, embedded system and DSP technology.Chapter two introduces the principle of impulse radar and the digital information acquires method of embedded radar, including the sampling of echo and the acquisition of angle.Chapter three discusses embedded operating system and embedded GUI. Montavista Linux and Qt/Embedded are selected as the embedded operating system and embedded GUI respectively. Chapter three also introduces embedded processor, PXA255 from Intel.Chapter four provides the system's total architecture and the detailed architecture design of the lower unit.Chapter five discusses the software design and implementation of the embedded sub system. The architecture, interface and menu are discussed in detail. Also discusses the communicating method adopted in the communication between DSP and the embedded processor.Chapter six draws a conclusion of this paper and make a forward looking on the expansion of the system's performance and function.