現(xiàn)行的機載雷達一般都采用電視體制的PAL制或VGA制式，這兩種信號均為模擬信號，模擬信號在用于現(xiàn)代的液晶顯示時，要經(jīng)歷先D/A后A/D的變換，經(jīng)過變換后信號必然有所損失，為了避免這種損失，提出了一種使用高速數(shù)字接口——DVI的顯示方式，此種顯示方式可完全保證數(shù)字視頻在顯示過程中不會引進任何損失，本設(shè)計已成功運用到一款機載雷達中，使得該雷達的顯示分辯率和穩(wěn)定度均有較大提升，本設(shè)計使用SiI1160為接口器件，數(shù)字視頻形成電路由FPGA構(gòu)成，實驗證明此種設(shè)計穩(wěn)定可靠，完全達到產(chǎn)品要求。

　　Abstract:

　　Currently, airborne radar usually used PAL or VGA signal in video mode to display, both of them are analog signals. When analog signal was used in the LCD video, the digital signals must be transformed to analog signal, and then transformed to digital signal again. During this process the signal must be lost. To avoid the situation, a new high speed video mode, DVI mode is brought forward, which can make sure that the signal will not be lost in the digital video. This design has successfully used in an airborne radar system, which makes the distinguishability and stability of the radar improved much better. In this design, SiI1160 is used as interface chip and FPGA is used to produce digital circuit. As the result of this experiment, this design can be used in the production stably and reliably.