A timing/gain control device

Abstract

The invention relates to a timing / gain control device, belonging to the technical field of phased array radar manufacturing. The timing / gain control device comprises a housing, a timing gain control board and a power chip. The timing gain control board comprises an FPGA chip, an EPCS64 serial chip, an Flash, a RAM, a JTAG connector, a 50M crystal oscillator, a RS422 driver chip / TTL driver chip anda PDS210 connector. An NIOSII_PROCESSER soft core processor configured by FPGA chip achieves a reading and writing Flash interface and a reading and writing RAM interface; the RS422 / TTL drive chip generates two gain control signal levels to facilitate online configuration of the timing parameters, automatically generate the gain control signals and achieve the online configuration of the gain curve, the operation is flexible, and the gain control is fine. The problems are solved that the current various timing parameters are solidified in the program, the correction is difficult, the segmentation attenuation gain control cannot be refined and regulated.

Description

technical field [0001] The invention relates to a timing / gain control device, which belongs to the technical field of phased array radar manufacturing. Background technique [0002] The timing square wave of the whole machine is used to ensure the synchronous operation of the various components of the phased array radar, and to drive multiple plug-ins to work normally. On the one hand, the gain control can adjust the ability of the receiver to amplify useful signals to make the target clear; on the other hand, it can attenuate various interference signals to ensure that the receiver is not overloaded. However, the various timing parameters of the conventional timing / gain control equipment are solidified in the program in advance. In this way, the program needs to be modified every time the timing diagram is changed, which takes a long time and is very inconvenient to operate. The gain control adopts segmented attenuation method, and the attenuation section is divided on the...

AI Technical Summary

Problems solved by technology

However, the various timing parameters of the previous timing / gain control equipment are solidified in the program in advance. In this way, the program needs to be modified every time the timing diagram is changed, which takes a long time and is very inconvenient to operate.

The gain control adopts segmented attenuation method, and the attenuation section is divided on the square wave in the working area. There is only one attenuation value in the same attenuation section, and the number of attenuation sections cannot be large, so the attenuation control cannot be refined, affecting performance of the receiver

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