Phased array beam control device and control method thereof

Abstract

The invention discloses a phased array beam control device, a firmware upgrading method and radar. The phased array beam control device comprises: a first FPGA module used for the real-time processingof phase data of a beam; a second FPGA module used for outputting corresponding instructions to a plurality of radio frequency transceiving components according to the data processed by the first FPGA module; a clock and synchronizing signal module used for generating a clock signal and synchronizing the clock signal to the first FPGA module and the second FPGA module; a first DDR module used forstoring the process data generated by the first FPGA module; an FLASH module used for storing configuration information required by loading; and a power supply module used for supplying power to thefirst FPGA module and the second FPGA module. According to the single phased array beam control device composed of the first FPGA module and the second FPGA module, logic control for the plurality ofradio frequency transceiving components can be achieved at the same time, the number of beam control devices is reduced, and therefore, the hardware cost of the system is reduced.

Description

Technical field [0001] The invention relates to the technical field of signal processing, in particular to a phased array beam control device and a control method thereof. Background technique [0002] The beam control devices of phased array radar usually include centralized and distributed. Among them, centralized refers to the unified operation of the amplitude and phase of each array unit of the phased array by a set of beam control devices. After the calculation is completed, the phase will be shifted. The data of the receiver and the attenuator is distributed to each antenna array unit, the amount of hardware equipment is small, and the cost is low, but the computing time will increase with the increase of the antenna unit, which affects the speed of beam scanning. Distributed means that the entire array antenna is divided into multiple sub-arrays. Each sub-array is controlled by a beam control device. Each beam control device only calculates the phase shift of the radio fr...

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Problems solved by technology

[0002] The beam control devices of phased array radar usually include centralized and distributed. Among them, centralized means that a set of beam control devices performs unified calculations on the amplitude and phase of each array unit of the phased array, and shifts the phase after the calculation is completed. The data of the attenuator and the attenuator are distributed to each antenna array unit, the amount of hardware equipment is small, and the cost is low, but the calculation time will increase with the increase of antenna units, which will affect the speed of beam scanning

Distributed means that the entire array antenna is divided into multiple sub-arrays, each sub-array is controlled by a beam control device, and each beam control device only calculates the phase shift amount of the RF transmitting and receiving components in this sub-array, thereby reducing the calculation time and satisfying the requirements of beam control. However, the increase in the number of beam control devices required will increase the cost, decrease the reliability, and increase the workload of debugging and maintenance.

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