UWB radar signal simulator based on FPGA and UWB radar signal generation method

A radar signal and generation method technology, applied in the information field, achieves the effects of low development cost, easy function upgrade, and convenient performance debugging

Inactive Publication Date: 2009-11-11
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes an improved way to create ultraviolet wireless communication systems that use frequency bands from 30 GHz or higher frequencies called Ultraband® band(UH). These waves have unique properties such as being able transmit faster than light pulses with wavelengths shorter compared to microwaves without these special materials. They may even carry more energy over longer distances due to their ability to reflect infrared radiation back into space through rainbow shadows caused when they hit surfaces during snowfall on Earth' s surface. Additionally, it suggests combining different types of radioactive material sources like Amberlite Xenon Zeon B127 to improve sensitivity and range capabilities while reducing harmful emissions associated therewith. Overall, this new approach allows for efficient and effective utilization of resources within specific areas where electromagnetic spectrum needs protection.

Problems solved by technology

This patents describes different techniques that have been developed over recent years to improve wireless communications technology. One technique involves transmitting waves called ultraviolet light or infinitiated lasers (IRLs), which allows short pulses of very small duration to travel between points within seconds without being affected by interference from nearby sources like buildings or vehicles. Another approach focuses on improving the accuracy of radiowave systems due to their ability to accurately reconstruct complex electrical structures based upon these characteristics.

Method used

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  • UWB radar signal simulator based on FPGA and UWB radar signal generation method
  • UWB radar signal simulator based on FPGA and UWB radar signal generation method
  • UWB radar signal simulator based on FPGA and UWB radar signal generation method

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Embodiment Construction

[0040] Below in conjunction with the accompanying drawings, the specific technical solutions of the invention will be further described.

[0041] The method that the present invention produces analog signal adopts memory direct reading method (DDWS), and signal generation method is as figure 1 shown. Firstly, the user designs the signal waveform to be generated, and samples the signal waveform according to the sampling law. Then save the sampled digital signal in the memory. Finally, when an analog signal is generated, the values ​​of each sampling point are sequentially read out according to the address of the memory generated by the sampling clock, and converted into an analog signal by a DAC.

[0042] The structure of the signal simulator generation method designed by the present invention is as follows: figure 2 As shown, two quadrature (I, Q) analog signals can be generated simultaneously, thereby generating analog signals with higher bandwidth. Pre-calculate the val...

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Abstract

The invention relates to a UWB radar signal simulator based on FPGA, comprising a PC104 interface module, an RAM module, an FPGA module and a high-speed DAC module; the PC104 interface module completes data transmission with a host with PC104 mode by a PCI protocol; the RAM module adopts six ZBT-SRAMs with the bit width of 32 as data cache; the FPGA module adopts Virtex-4 series of product XC4VLX40 offered by Xilinx company and comprises a PCI interface control module, a RAM control module, a high-speed DAC control module and a radar waveform control module; the high-speed DAC control module selects AD9736 of ADI company; the interconnection of all the modules is realized by control modules in the FPGA module, the PC104 interface control module completes butting joint of the FPGA module and the PC104 interface module; data generated by controlling a host computer is transmitted to the inner part of the FPGA module from the PC 104 interface module; the RAM control module completes butting joint of the FPGA module and the RAM module so as to realize the transmission of data between the FPGA and the ZBT-SRAM; and the high-speed DAC control module completes butting joint of the FPGA module and the high-speed DAC module and controls the high-speed DAC module to generate various radar waveforms.

Description

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Claims

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Application Information

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Owner BEIHANG UNIV
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