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Method and apparatus for detecting envelope using difference between sampling signals

一种采样信号、设备的技术，应用在测量装置、采用光学装置、仪器等方向，能够解决大电路复杂性、难以检测包络、准确度降低等问题

Active Publication Date: 2013-10-23
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the signal processing may require considerable circuit complexity for circuit implementation
Also, in schemes using analog circuits such as diodes, capacitors, etc., the circuit complexity is low, but it is difficult to detect complex envelopes
Also, besides schemes using filters in frequency bands, the accuracy of envelope detection by biasing may be degraded by

Method used

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  • Method and apparatus for detecting envelope using difference between sampling signals
  • Method and apparatus for detecting envelope using difference between sampling signals
  • Method and apparatus for detecting envelope using difference between sampling signals

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Embodiment Construction

[0019] The following detailed description is provided to help the reader gain an overall understanding of the methods, devices and / or systems described herein. Accordingly, various changes, modifications, and equivalents of the systems, devices, and / or methods described herein will be suggested to those of ordinary skill in the art. The progression of process steps and / or operations described is an example; however, the sequence of steps and / or operations is not limited to the order set forth herein, and except for steps and / or operations that must occur in a specific order, the steps and / or operations The order of operations may be altered as is known in the art. Also, descriptions of well-known functions and constructions may be omitted for increased clarity and conciseness.

[0020] figure 1 is a graph showing an example of a sine wave with a direct current (DC) offset and an example of an envelope detected from the sine wave. refer to figure 1 , the envelope ("actual e...

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Abstract

A method and an apparatus for detecting an envelope using a difference between sampling signals are provided. The method includes generating sampling sets based on sampling signals of a modulated signal, and determining a sampling set from the sampling sets. The method further includes determining an envelope component value associated with a sampling signal among sampling signals included in the determined sampling set, based on a difference between the sampling signals included in the determined sampling set, and a difference between sampling signals included in each of the sampling sets other than the determined sampling set. The method further includes detecting an envelope of the modulated signal based on the envelope component value.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2012-0032064 filed with the Korean Intellectual Property Office on March 29, 2012, the entire disclosure of which is hereby incorporated by reference for all purposes. technical field [0002] The following description relates to a method and apparatus for detecting an envelope using a difference between sampled signals. Background technique [0003] Envelope detection has been used to process signals in the fields of speech processing, image processing, data communication, etc., where modulated signals are received and demodulated. Envelope detection has also been used in fields such as the transmission of energy or data. [0004] Signal processing is used for envelope detection methods, e.g. schemes using band-pass filters or low-pass filters in frequency bands, peak hold in analytical signals obtained by Hilbert transform plan etc. However, the signal processing may require considerable circu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/00
CPCG10L25/03H04L27/06G01B9/0209G01B9/02083G10H1/057G10H2250/031H04B1/12H04B1/04H04L27/00G10H2250/025
Inventor 尹胜槿权义根金尚骏
Owner SAMSUNG ELECTRONICS CO LTD
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