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A pulse position modulation ultra-wideband signal generation method

A pulse position modulation and ultra-wideband signal technology, applied in electrical components, transmission systems, etc., can solve the problems of limited control speed, limited control accuracy of synthetic signals, and difficulty in generating multi-pulse position modulated ultra-wideband signals, etc., to achieve tunable Good performance, low power consumption and light weight

Active Publication Date: 2017-12-19
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

First, the delay of the composite signal and the control accuracy of the power ratio are limited, which affects the quality of the generated signal to a certain extent; second, the delay of the composite signal and the control speed of the power ratio are limited, which affects the solution to a certain extent reconfigurability; third, these schemes are generally difficult to generate multi-pulse modulation ultra-wideband signals

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  • A pulse position modulation ultra-wideband signal generation method
  • A pulse position modulation ultra-wideband signal generation method
  • A pulse position modulation ultra-wideband signal generation method

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the solution of the present invention is composed of a signal source 100 , a pulse position mapping module 200 , a laser 300 , an optical modulator 400 , an optical differentiation and synthesis module 500 and a photodetector 600 . Wherein, pulse position mapping module is made up of serial / parallel converter 201, pulse position coder 202 and parallel / serial converter 203 (as figure 2 shown). The original serial bit information stream generated by the signal source is first transformed into a parallel block code with a code length of n by a serial / parallel converter (such as figure 2 shown, b 1 , b 2 ,...,b n ). Each group of parallel block codes obtained is coded and mapped into corresponding pulse position coding information (such as figure 2 shown, b 11 , b 12 ,...,b 1m ). Then, the obtained parallel pulse position cod...

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Abstract

The invention discloses a pulse position modulation ultra-wideband signal generation method. The original source information is coded and mapped by the pulse position mapping module into the corresponding pulse position coded information, and then loaded onto the optical carrier through the optical modulator. The modulated optical signal can generate a pulse position modulated ultra-wideband signal after being differentiated, synthesized and photoelectrically converted in the optical domain. On the basis of ensuring the generation of high-performance multi-pulse position modulation ultra-wideband signals, the method of the present invention realizes the diversity of multi-pulse position modulation ultra-wideband signal generation, enriches the generation technology of pulse position modulation ultra-wideband signals, especially based on photoelectric hybrid technology Pulse Position Modulation Flexibility for UWB Signals.

Description

technical field [0001] The invention relates to the field of microwave photonics and microwave signal generation, in particular to the generation technology of photoelectric hybrid pulse position modulation ultra-wideband signal. Background technique [0002] Ultra-wideband signal communication technology has the advantages of low power consumption, high transmission rate, strong anti-interference ability, and sharing of existing wireless communication frequency bands. application. UWB signal generation technology is one of the key technologies of UWB communication technology. At present, UWB signal generation technology can be mainly divided into two categories: UWB signal generation technology based on electricity and UWB signal generation technology based on optics. Compared with the traditional electrical UWB signal generation technology, the optical UWB signal generation technology has the advantages of ultra-low power consumption, good tunable performance, small size...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/7163
Inventor 易安林闫连山罗斌潘炜陈智宇蒋林叶佳
Owner SOUTHWEST JIAOTONG UNIV
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