A scanning system and control method for realizing multiple scanning modes of marine radar

Abstract

The invention discloses a scanning system achieving multiple ocean radar scanning modes and a control method. The scanning system comprises an FPGA control module, an analog control and driving system, a stepping motor, a speed reducer, a high-precision servo turntable, a high-resolution-rate absolute value encoder, an antenna and a terminal computer. The FPGA control module, the analog control and driving system, the stepping motor, the speed reducer, the high-precision servo turntable and the high-resolution-rate absolute value encoder are connected in sequence. The FPGA control module is further connected with the terminal computer through the gigabit Ethernet. The control method is applied to an ocean measurement radar system and an ocean environment detection system based on the marine navigation radar. A brand new hardware platform is provided for research on comprehensive ocean environment information such as marine target environment, sea surface waves, ocean current, sea water, spilled oil and hydrometeorology.

Description

technical field [0001] The invention belongs to the field of marine target and marine environment detection, and in particular relates to a scanning system and a control method for realizing multiple scanning modes of marine radar. Background technique [0002] The scanning mode of the existing marine survey radar and marine environment detection system based on marine navigation radar is basically a single-rate ring scan. A fixed-rate ring scan method cannot meet the detection requirements of marine targets and marine environments in different situations. From the perspective of detection functions, the function is single and the scope of application is limited. Some of the main reasons are that marine targets and marine environments in different situations Detection requires different data acquisition rates for radars. Marine target detection has a high demand for radar data acquisition rate, and it is necessary to quickly determine the target azimuth angle and its trajec...

AI Technical Summary

Problems solved by technology

A fixed-rate ring scan method cannot meet the detection requirements of marine targets and marine environments in different situations. From the perspective of detection functions, the function is single and the scope of application is limited. Some of the main reasons are that marine targets and marine environments in different situations Detection has different data acquisition rate requirements for radar

Marine target detection has a high demand for radar data acquisition rate, and it is necessary to quickly determine the target azimuth angle and its trajectory, while marine environment detection, because the marine environment such as sea ice, currents, waves, etc. is in a steady state within a certain period of time, most of them do not need Higher radar data acquisition rate, for sea ice boundary, oil spill boundary and high sea state measurement, requires continuous accumulation of single radial radar data, which requires oceanographic measurement radar to have directional scanning function. In order to improve radar stealth performance, environmental The scan mode is easy to be monitored. In addition, there are inevitably dense areas of human life and production around the radar, which are not suitable for electromagnetic radiation. Radar data acquisition in designated sectors is required. In the current marine survey radar system and the marine environment based on marine survey radar In the detection system, the single-rate radar scanning method can no longer take into account the application of the above-mentioned multiple situations, while the marine measurement radar with multiple scanning methods has greatly improved the general capabilities in the field of marine target and marine environment detection

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