Time division multi-channel random code phase modulation marine anti-collision radar

Abstract

The invention relates to the technical field of radio positioning, which is a time-division random code phase modulation multi-channel marine anti-collision radar. On the mast or the top of the ship, set a dual-purpose quasi-optical integrated dielectric lens antenna ring array for receiving / transmitting, which is scanned by DSP coded pulses in all directions to warn of possible collision targets on the water surface, water surface camera, ship speed sensor, satellite positioning sensor GPS data MCU control Time-division millimeter-wave multi-channel random code phase modulation, through up-conversion, R / T3, frequency multiplication and power amplifier, R / T2, circulator, beam switch, antenna array transmission, echo through antenna array, beam switch, circulator, R / T1, low-noise high-amplification, sub-harmonic mixing, mid-amplification, and extraction related multi-channel signals are processed and controlled by DSP and MCU. Adjacent ships in the same water area sail without interfering with each other and coexist. It has high-performance electromagnetic compatibility EMC. The target DSP suppresses the false alarm to determine the azimuth, distance and speed, and the CRT displays the three-dimensional panoramic image. The closer the target distance is, the clearer the resolution is, and the target at the closest distance to the ship can be identified, and the sound and light alarm is controlled when it is less than the safe distance, and the intelligent obstacle avoidance or Deceleration, its control refers to the surface camera combined with the speed of the ship and GPS to provide the current position data selection, which significantly improves the safety of the ship's navigation.

Description

technical field [0001] The invention relates to the technical field of radio wave transmission and reception to detect target azimuth, distance and speed, in particular to a time-division multi-channel random code phase modulation marine anti-collision radar. Background technique [0002] At present, with the rapid development of ocean shipping and inland river and lake shipping and fishery, a large number of ships are increasing, ports and waterways are becoming more and more crowded, and ships are often overloaded and speeding, especially when two or more ships meet, their inertial forces impact and set off large waves , affecting the course is not easy to operate correctly, causing ships to collide with each other or hit bridge piers, and in severe cases, the ship sinks, and even the bridge collapses. The probability of accidents is greater in stormy weather. The application of radar anti-collision in ocean shipping, fishery production, and river and lake shipping is deve...

AI Technical Summary

Problems solved by technology

In addition, simple monitors are difficult to distinguish adjacent targets, cannot display multiple target panoramic images, and lack early warning for relative positions, distances, and moving speeds

The existing anti-collision radar lacks the function of using sensor signals to form a closed-loop control, lacks the adaptive control of the antenna in the water environment and the intelligent control of automatic obstacle avoidance and deceleration, and the poor visibility or navigation distress cannot help the driver in time to avoid danger and avoid accidents.

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