Multiple narrowband interference suppression method for ultra-broadband communication system based on non-linear Chirp pulses

A technology for ultra-wideband communication and narrowband interference, applied in transmission systems, electrical components, etc., can solve problems such as only considering single narrowband interference suppression

Inactive Publication Date: 2014-10-01
SHANDONG UNIV
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Problems solved by technology

The above methods only need to be processed in the time domain to change the corresponding frequency domain characteristics, so as to achieve the purpose of suppressing narrowband interference, but they only consider the suppression of single narrowband interference

Method used

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  • Multiple narrowband interference suppression method for ultra-broadband communication system based on non-linear Chirp pulses
  • Multiple narrowband interference suppression method for ultra-broadband communication system based on non-linear Chirp pulses
  • Multiple narrowband interference suppression method for ultra-broadband communication system based on non-linear Chirp pulses

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Embodiment

[0046] A method for suppressing multi-narrowband interference in ultra-wideband (UWB) communication systems based on nonlinear Chirp pulses, realized by the following systems, such as figure 1 As shown, the system includes a single-antenna source node 1 and destination node 3, and the source node 1 broadcasts a signal to the destination node 3 through the additive white Gaussian noise channel 2; the signal received by the destination node 3 includes the signal transmitted by the source node 1 signals, multi-narrowband interference signals and additive white Gaussian noise signals in the channel environment, such as figure 2 As shown, the specific steps of the method are as follows:

[0047] A. The UWB communication system is ready to start working;

[0048] B. The ultra-wideband communication system obtains the corresponding frequency band (f il(j) , f ih(j) ) and center frequency f i(j) , j∈(1,2,…,N), f il(j) and f ih(j) are the lower limit frequency and upper limit fr...

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Abstract

The invention provides a multiple narrowband interference suppression method for an ultra-broadband communication system based on non-linear Chirp pulses, and belongs to the technical field of wireless communication. The system comprises an information source node and a destination node. According to the method, frequency domain parameters of narrowband interference are obtained according to the spectrum sensing technology, time domain processing is conducted on a waveform according to the good time frequency mapping relation of the Chirp pulses, and therefore corresponding frequency domain characteristics are changed, and one kind of self-adaptive non-linear Chirp ultra-broadband pulses is designed for suppressing multiple narrowband interference existing in the ultra-broadband system. The pulse waveform design scheme is suitable for the ultra-broadband communication system based on narrow pulses, and energy of the designed ultra-broadband pulses is distributed in the persistent period of the whole waveform, and the problem of high-peak power is solved. According to the method, the multiple narrowband interference in the ultra-broadband system is effectively suppressed, and the anti-interference capability and communication performance of the system are enhanced.

Description

technical field [0001] The invention relates to a method for suppressing multi-narrowband interference in an ultra-wideband (UWB) communication system based on nonlinear Chirp pulses, and belongs to the technical field of wireless communication. Background technique [0002] Ultra-wideband (UWB) is a low-power short-distance high-speed wireless communication technology, which provides a new idea for solving the problem of lack of wireless spectrum resources. Since FCC approved UWB technology for civilian use in 2002, UWB technology has caused attracted increasing attention from academia and industry. Ultra-wideband technology has the characteristics of wide frequency bandwidth, high transmission rate, low power consumption, good confidentiality, and anti-multipath fading. These characteristics make ultra-wideband technology have broad application prospects in the fields of wireless communication, radar, and precise positioning. It has incomparable advantages in indoor short...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/719
Inventor 白智全高深董培浩
Owner SHANDONG UNIV
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