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OCC (orthogonal complementary code) UWB (ultra wide band) system interference suppression method based on Chirp pulse

A chirp, system interference technology, applied in transmission systems, electrical components, etc.

Inactive Publication Date: 2013-09-18
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the defects and deficiencies in the existing technical solutions, the present invention provides a chirp-based OCC UWB system interference suppression method, which can improve the system transmission rate and communication performance while suppressing interference by using a parallel OCC UWB system , a good solution to the problem of multi-user coexistence in communication systems

Method used

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  • OCC (orthogonal complementary code) UWB (ultra wide band) system interference suppression method based on Chirp pulse
  • OCC (orthogonal complementary code) UWB (ultra wide band) system interference suppression method based on Chirp pulse
  • OCC (orthogonal complementary code) UWB (ultra wide band) system interference suppression method based on Chirp pulse

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Embodiment

[0034] Examples of the present invention figure 1 As shown, a chirp-based OCC UWB system interference suppression method includes a transmitting node 1 and a destination terminal 3, wherein the transmitting node 1 is configured with a single antenna, and broadcasts multi-user signals to the destination terminal 3 through a wireless multipath channel 2 ; The signal received by the destination terminal 3 comes from the useful signal transmitted by the transmitting node 1 and the interference signal in the channel environment, wherein the orthogonal Chirp code is used at the transmitting node 1 to characterize the information of each data bit symbol, so that the destination terminal 3 separate out the metacodes of different users, the concrete steps of this method are as follows:

[0035] A. The OCC UWB communication system is ready to start working;

[0036] B. Divide the bandwidth in the available frequency band of the OCC UWB communication system into L subbands, and each sub...

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Abstract

The invention discloses an OCC (orthogonal complementary code) UWB (ultra wide band) system interference suppression method based on Chirp pulse, which belongs to the field of wireless communication. The system comprises an emitting node and a destination terminal. The method disclosed by the invention aims to design a parallel OCC UWB system based on Chirp pulse; the method comprises the following steps: firstly, representing the message of each data bit at the emitting node by low-complexity orthogonal Chirp code, so as to reduce the complexity of the emitting node; and secondly, enabling the destination terminal to easily extract the element code of various users by using the orthogonal characteristic of the orthogonal Chirp code. In the method, directing at the OCC UWB communication system, the parallel transmission method is used and the low-complexity orthogonal Chirp code is introduced to transmit the data bit message, therefore the multi-user wireless communication can be realized, and meanwhile the interference suppression property and the communication property of the system are improved.

Description

technical field [0001] The invention relates to a chirp pulse-based interference suppression method for an ortho-complementary code (OCC) ultra-wideband (UWB) system, which belongs to the field of wireless communication. Background technique [0002] Since FCC approved Ultra Wide Band (UWB) technology for civilian use in 2002, UWB technology has attracted more and more attention. Ultra-wideband technology has the advantages of low transmission power, low complexity, low cost, strong anti-interference ability and high multipath resolution. One of the important factors and conditions for high-quality, high-compatibility communication. UWB technology can provide high-speed and reliable data connections between portable electronic devices and communication devices within a relatively short distance. [0003] The extremely wide bandwidth of UWB signals determines that its spectrum will inevitably overlap with existing narrowband communication systems in the frequency domain. Th...

Claims

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Application Information

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IPC IPC(8): H04B1/719
Inventor 白智全王常慧王兵高深
Owner SHANDONG UNIV
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