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Method for realizing phase overturn-amplitude shift keying digital modulation

An amplitude shift keying and digital modulation technology, applied in the field of communication, can solve the problem of no implementation method, and achieve the effect of PR-ASK digital modulation

Inactive Publication Date: 2012-11-28
ZTE INTELLIGENT IOT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the standard only gives the signal envelope requirements for PR-ASK modulation, but does not give a specific implementation method. In addition, there is no detailed description of how to implement PR-ASK modulation in other related documents.

Method used

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  • Method for realizing phase overturn-amplitude shift keying digital modulation
  • Method for realizing phase overturn-amplitude shift keying digital modulation
  • Method for realizing phase overturn-amplitude shift keying digital modulation

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Embodiment Construction

[0024] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] In an embodiment of the present invention, a method for realizing PR-ASK digital modulation is provided.

[0026] figure 2 It is a flowchart illustrating a method for implementing PR-ASK digital modulation according to an embodiment of the present invention.

[0027] Such as figure 2 As shown, the method includes the following processing: step S202, according to the prescribed modulation waveform, carry out corresponding regular coding on the preamble and data (including data 0 and data 1) to generate a coding sequence; step S204, according to the prescribed communication rate and the pulse width of data 0 and data 1, to control the sequential transmission of the coding sequence; and step S206, to perform shaping and filtering to obtain a phase inversion-amplitude shift keying (PR-ASK) digitally modulated waveform.

[0028] Details of the abo...

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Abstract

The invention provides a method for realizing the phase reversal-amplitude shift keying digital modulation, including: a first step, according to the given modulating waveform, the lead code and the data are coded with corresponding rules to generate a code sequence; a second step, according to the given communication speed and the pulse duration of data 0 and 1, the ordinal transmission of the code sequence is controlled; and a third step, shaping and filtering are processed to obtain the waveform of phase reversal-amplitude shift keying digital modulation.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for realizing phase reverse-amplitude shift keying (Phase Reverse-Amplitude Shift Key, abbreviated as PR-ASK) digital modulation. Background technique [0002] The EPC stipulated by the Electronic Product Code Global (EPCGlobal) organization TM Radio-Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocol for Communications at860MHz-960MHz (hereinafter referred to as EPC C1G2) standard and the ISO18000-6C standard stipulated by the International Organization for Standardization (ISO) In the communication method, PR-ASK modulation can be used to realize baseband-to-carrier modulation. exist figure 1 The PR-ASK modulation characteristics specified in the standard are shown in . However, the standard only provides the signal envelope requirements for PR-ASK modulation, but does not give a specific implementation method. In addition, there is no detailed des...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/02H04L27/34
Inventor 程伟森曾祥希王学寰
Owner ZTE INTELLIGENT IOT TECH
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