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A communication method for simultaneous modulation of pulse width and frequency

A technology of pulse width modulation signal and communication method, which is applied in the direction of frequency modulation carrier system and multi-carrier system, which can solve the problem of increasing data transmission capacity and achieve the effect of improving data transmission capacity

Active Publication Date: 2019-05-03
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the most common digital signal modulation methods used by people are pulse frequency modulation or pulse phase modulation. These modulation methods use discrete data to modulate the frequency or phase of the signal, and can only transmit or receive 1 bit of data at a time, and it is difficult to transfer the data Increased transmission capacity

Method used

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Examples

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the examples, but it does not constitute any limitation to the present invention.

[0014] A communication method for simultaneously modulating pulse width and frequency of the present invention, comprising the following steps: A. A one-dimensional array M[X] with a bit width of N (00) The subscript Y value in is sent to the frequency modulator, thereby producing a frequency pulse signal fY with a cycle of T; B, the frequency pulse signal fY and the array subscript as Y (0≤Y<X) data M[Y ] into the pulse width modulator together, and the pulse width modulator modulates the data M[Y] into a frequency pulse width modulation signal P whose cycle is T in the range of 1%-99% duty cycle; C, the received frequency The pulse width modulation signal P is sent to the frequency demodulator and the pulse width demodulator for demodulation. Both X and Y are natural numbers greater than zero, and this...

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Abstract

The invention is to provide a communication method capable of realizing pulse width and frequency simultaneous modulation, which can greatly improve data transmission capacity. The method comprises the following steps: A) sending a subscript Y value in a one-dimensional array M[X], of which the bit width is N (0<N<=8), and the length is X (X>0), to a frequency modulator to generate a frequency pulse signal fY, the period of which is T; B) sending the frequency pulse signal fY and a data array M[Y], the subscript of which is Y (0<=Y<X), to a pulse width modulator, which modulates the data array M[Y] to obtain a frequency pulse width modulation signal P, which is within a 1-99% duty ratio range and the period of which is T; and C) sending the received frequency pulse width modulation signal P to a frequency demodulator and a pulse width demodulator for demodulation. The original 1-bit data modulation and transmission is improved to one or more-byte modulation and transmission, thereby greatly improving data transmission capacity.

Description

technical field [0001] The invention relates to the field of digital signal modulation, in particular to a communication method for simultaneously modulating pulse width and frequency. Background technique [0002] At present, the most common digital signal modulation methods used by people are pulse frequency modulation or pulse phase modulation. These modulation methods use discrete data to modulate the frequency or phase of the signal, and can only transmit or receive 1 bit of data at a time, and it is difficult to transfer the data Increased transmission capacity. Contents of the invention [0003] The object of the present invention is to provide a communication method of pulse width and frequency simultaneous modulation which can improve the data transmission capacity. [0004] The technical solution of the present invention is achieved in this way: a communication method for simultaneously modulating pulse width and frequency, comprising the following steps: [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/32H04L27/12
CPCH04L27/12H04L27/32
Inventor 王其军周平
Owner SOUTHWEST PETROLEUM UNIV
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