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Ultra-wideband pulse radio preprocessor system capable of being used for interference elimination

An ultra-wideband pulse and pre-processor technology, applied in transmission systems, electrical components, transmission noise suppression, etc., can solve problems such as long digital filters, ultra-high sampling rate requirements for signal digital-to-analog conversion, and difficulty in optimizing synthesis filters , to achieve good robustness, overcome the difficulty of digital-to-analog conversion with ultra-high bandwidth, and reduce the sampling rate

Inactive Publication Date: 2018-09-18
FUJIAN NORMAL UNIV
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Problems solved by technology

[0004] The existing ultra-wideband pulsed radio interference processing technology assumes that the ultra-wideband pulsed radio signal has been digitized, and directly requires a very high sampling rate for signal digital-to-analog conversion. Strong interference elimination also requires a long digital filter, and these synthesized Filter optimization is difficult

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  • Ultra-wideband pulse radio preprocessor system capable of being used for interference elimination
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  • Ultra-wideband pulse radio preprocessor system capable of being used for interference elimination

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Embodiment Construction

[0041] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0042] like figure 1 As shown, a kind of UWB pulse radio preprocessor system that can be used for interference elimination in the present invention includes a sub-band signal division unit and a sub-band signal recombination unit, and the sub-band signal division unit is used to convert the input UWB pulse radio The signal is divided into M subband signals, and the subband signal reorganization unit is used to recombine the M subband signals output by the subband signal division unit, wherein M is an integer greater than or equal to 1.

[0043] The sub-band signal division unit divides the UWB pulse radio signal into sub-band signals in the following manner:

[0044] first branch:

[0045] The input ultra-wideband pulse radio signal first passes through the first sub-band low-pass filter to generate the first sub-band signal; the first su...

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Abstract

The invention relates to an ultra-wideband pulse radio preprocessor system capable of being used for interference elimination. The system comprises a subband signal division unit and a subband signalrecombination unit, the subband signal division unit is used for dividing input ultra-wideband pulse radio signals into M subband signals, the subband signal recombination unit is used for recombiningthe M subband signals output by the subband division unit, wherein M is an integer greater than or equal to 1. The system provided by the invention has no need of using a digital-to-analog converterwith ultrahigh conversion rate, and overcomes obstacles of difficulties in digital-to-analog conversion caused by ultrahigh bandwidth in ultra-wideband pulse radio signal digital processing or interference processing; and, in the system provided by the invention, only the subband signals suffered from interference need to be processed by digital-to-analog conversion, and subjected to frequency shift to a low frequency region, thus, sampling rate can be reduced greatly; moreover, the system provided by the invention can realize perfect recombination of input signals by itself, and has excellentrobustness in case of that each branch has defects or is mismatched.

Description

technical field [0001] The invention belongs to the field of ultra-wideband wireless communication, and in particular relates to an ultra-wideband pulse radio preprocessor system that can be used for interference elimination, which can be applied to eliminate the interference of other radio frequency signals received by ultra-wideband pulse radio signals, and can also be applied to other ultra-wideband pulse radio signals. Broadband pulsed radio signal processing. Background technique [0002] One implementation technology of Ultra Wideband (UWB) communication is impulse radio. Impulse radios employ ultrashort duration pulses, resulting in signals with ultrawide (GHz) bandwidth. The system needs to coexist with many existing communication systems, for example, with IEEE 802.11a wireless LAN operating at 5Ghz. Therefore, it would be very beneficial for UWB communication systems to have an interference canceller that can filter out strong interference from existing systems a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/10H04B15/00
CPCH04B1/10H04B15/00
Inventor 王徐芳林峰吴怡
Owner FUJIAN NORMAL UNIV
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