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Signal processing method and device

A signal processing and signal technology, applied in the application field of communication technology, can solve the problems of large amount of calculation and low decoding efficiency

Active Publication Date: 2019-05-31
广州禄德投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a signal processing method and device to at least solve the technical problem of low decoding efficiency due to the large amount of computation in the process of decoding signals in the related art

Method used

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Embodiment 1

[0035] According to an embodiment of the present invention, an embodiment of a decoding method is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, although in The flowcharts show a logical order, but in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0036] figure 1 is a schematic flowchart of a signal processing method at a receiving end according to an embodiment of the present invention, such as figure 1 As shown, at the receiving end side, the signal processing method includes the following steps under the OvTDM system:

[0037] Step S102, the receiving end receives the signal;

[0038] Step S104, the receiving end preprocesses the received signal to obtain a preprocessed signal; specific preprocessing may include operations such as synchronization, channel estima...

Embodiment 2

[0142] Figure 11 is a schematic flowchart of a signal processing method at a sending end according to an embodiment of the present invention, as shown in Figure 11 As shown, at the sender side, the signal processing method at the sender includes the following steps:

[0143] Step S1102, the transmitting end generates an envelope signal in the modulation domain according to the design parameters;

[0144]Step S1104, the transmitting end shifts the envelope signal in the modulation domain according to a predetermined displacement interval according to the number of overlapping multiplexing, to obtain each shifted envelope signal in the modulation domain;

[0145] Step S1106, the transmitting end multiplies the symbols in the sequence to be modulated with their corresponding shifted envelope signals to obtain the modulated envelope signal in the modulation domain;

[0146] Step S1108, the transmitting end superimposes the modulation envelope signal in the modulation domain to...

Embodiment 3

[0148] Figure 12 is a schematic structural diagram of a receiving device according to an embodiment of the present invention, such as Figure 12 As shown, on the receiver side, the device includes:

[0149] The receiving module 1202 is used to receive the signal; the preprocessing module 1204 is used to preprocess the received signal to obtain a preprocessed signal; the cutting module 1206 is used to cut the preprocessed signal according to a predetermined shift interval in the corresponding domain signal; a decoding module 1208, used to decode the cut signal according to a preset decoding algorithm; wherein, the decoding module 1208 includes: a length determination unit 12081, used to determine the sliding window length and the sliding window according to the number of system overlaps The length of the overlapping portion; the first acquisition unit 12082 is used to determine the encoded original sequence length of the signal according to the length of the sliding window an...

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Abstract

The invention discloses a signal processing method and device. The signal processing method comprises the steps that a receiving end receives a signal; the receiving end preprocesses the received signal to obtain a preprocessed signal; the receiving end cuts the pre-processed signal in the corresponding domain according to a predetermined shift interval; and the receiving end decodes the cut signal according to a preset decoding algorithm. The technical problem that the decoding efficiency is low due to the fact that in the prior art, the calculation amount is large in the signal decoding process is solved.

Description

technical field [0001] The present invention relates to the application field of communication technology, in particular, to a signal processing method and device. Background technique [0002] In the general BCJR algorithm and Log-MAP algorithm, due to the need to calculate the backward recursive parameters, it is necessary to wait until all the signals of the entire frame of data are received before decoding. In actual engineering implementation, it consumes more computing memory and leads to The code delay makes the algorithm difficult to implement. [0003] For the above-mentioned problem of low decoding efficiency caused by a large amount of computation in the process of decoding a signal in the related art, no effective solution has been proposed yet. Contents of the invention [0004] Embodiments of the present invention provide a signal processing method and device to at least solve the technical problem of low decoding efficiency in the related art due to a large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCY02D30/70
Inventor 不公告发明人
Owner 广州禄德投资有限公司
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