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Signal and data processing terminal of navigation radar

A data processing terminal and navigation radar technology, which is applied in the field of radar systems, can solve the problems of inflexible control of radar systems and poor versatility of external interfaces, and achieve the effects of low cost, easy maintenance, and flexible and changeable functions

Inactive Publication Date: 2018-07-20
XIAMEN XINGKANGXIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, DSP instructions are more suitable for implementing algorithms rather than logic control, and the versatility of its external interface is poor, and the control of the radar system is not flexible enough

Method used

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  • Signal and data processing terminal of navigation radar
  • Signal and data processing terminal of navigation radar
  • Signal and data processing terminal of navigation radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] Embodiment: a signal and data processing terminal of navigation radar, such as figure 2 as shown,

[0042] Programmable Logic Device FPGA: Process the received digital signal of the radar echo, and transmit it to the ARM processor in the form of data packets, and the ARM processes the received data, and displays the processed data through the LCD display Display, and connect control input devices such as trackball mouse and keyboard through an external key circuit, so as to control the radar unit.

[0043]A / D sampler: It samples the radar echo video signal output by the ship navigation radar receiver and converts it into a digital signal. The A / D sampler is composed of SMA radio frequency connector, radio frequency transmission transformer and AD chip.

[0044] The static random access memory (SRAM) is used to store the data output by the A / D sampler, and realizes the ping-pong operation during data transmission with the FIFO module inside the FPGA; the non-volatile m...

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Abstract

The invention discloses a signal and data processing method for a navigation radar and a signal and data processing terminal of the navigation radar with the application of the method and relates to the field of radar systems. The technical points are that the terminal receives a synchronization signal, an angle signal and an echo signal from a radar unit, the signals are converted into digital signals by an A / D sampler and the digital signals are sent to a programmable logic device FPGA, the programmable logic device FPGA processes receives echo intensity information, performs exception processing and carries out data interaction with an ARM processor with a processed signal, and the ARM processor filters the echo signal, displays the signal and controls a radar unit at the same time. Bya mode of the combination of the FPGA and the ARM, the signal and data processing of an echo is carried out effectively, the system complexity is reduced, the degree of system integration is high, thecost is low, the miniaturization of the system is achieved, the method is convenient for external field use, functions are flexible, and the control is convenient.

Description

technical field [0001] The invention relates to the field of radar systems, in particular to a navigation radar signal and data processing terminal. Background technique [0002] Radar is widely used in many fields such as national defense and military, civil aviation control, topographic survey, meteorology, and navigation. In terms of navigation, radars installed on ships for navigation avoidance, ship positioning, and narrow waterway piloting are ship navigation radars, also known as navigation radars. When visibility is low, this type of radar can provide necessary means of observation. [0003] At present, ship navigation radar is widely used in our country, and many domestic units are engaged in the research and development of ship navigation radar. However, due to problems in system design, device processing technology and algorithm implementation, the final products cannot completely replace foreign products. resulting in lower market share. [0004] The navigation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/02G01S7/41
Inventor 姚兆宁李昊
Owner XIAMEN XINGKANGXIN TECH CO LTD
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