FPGA chip-based ice-penetrating radar control method

A technology of ice detection radar and control method, which is applied in the direction of reflection/re-radiation of radio waves, utilization of re-radiation, measurement devices, etc., can solve the problems of low integration, unstable data link transmission, complex structure, etc. The effect of using resources, shortening the development cycle, and reducing the difficulty of development

Active Publication Date: 2015-07-01
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

FPGA processes multiple units under one clock and works in parallel, while DSP or ARM works serially. Therefore, when these hardware platforms are u

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  • FPGA chip-based ice-penetrating radar control method
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  • FPGA chip-based ice-penetrating radar control method

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0021] Such as figure 1 Shown is a block diagram of a radar receiver system (radar control system) 100, which has a USB interface that is connected to an external computer (hereinafter referred to as a host computer) 1 as a post-processing device for radar data and can perform two-way data transmission 2. FPGA chip 3, ADC chip 4 and DAC chip 5. The host computer receives data from the radar host and stores it in the internal hard disk. The FPGA chip (radar master controller) 3 is the core of the radar receiver system 1, and performs functions such as echo data collection, data processing, data return, and chirp signal transmission. FPGA chip 3 is by system main control unit 31, clock generation unit 32, signal playback u...

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Abstract

The invention discloses an FPGA chip-based ice-penetrating radar control method. A single FPGA chip is used for completing all functions needed by an ice-penetrating radar control system: downloading/analysis of parameters, output of radar linear frequency modulation signals, generation of pulse repetition frequency signals, acquisition of radar echo data, processing of the echo data, data backhaul and the like. No other processor for collaboration completion is needed, high system integration is realized, hardware use resources of the overall system are reduced, system software and hardware development difficulty are reduced, and the development cycle is shortened.

Description

technical field [0001] The present invention relates to the control technology of ice-penetrating radar, in particular to the control technology of ice-penetrating radar based on FPGA chip. Background technique [0002] Detecting the ice thickness and internal structure of polar ice sheets is the basis for studying the mass balance and evolution of ice sheets, and is one of the important ways to study global climate and sea level changes. Because glaciers have the advantages of small attenuation of radio waves, good layering and homogeneity of ice bodies, glacier detection using radar has been proved to be an effective technical means. In the past, ice-penetrating radars used a transmitting antenna to transmit high-frequency and wide-band electromagnetic pulses, and a receiving antenna to receive the reflected waves from the (underground) medium layer. When an electromagnetic wave propagates in a medium, its path, electromagnetic field strength, waveform, phase, etc. vary w...

Claims

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Application Information

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IPC IPC(8): G01S7/02
CPCG01S7/35G01S13/32G01S13/88
Inventor 李俊刘小军方广有赵博稂时楠陈秀伟柳青张峰
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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