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Signal identification device and method

A signal identification and signal technology, applied in the field of signal processing, can solve the problems that cannot meet the needs of high-precision occasions, are susceptible to interference, and have low recognition accuracy

Pending Publication Date: 2019-08-27
SHANGHAI YINUO INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This method has low recognition accuracy and is susceptible to interference, which cannot meet the needs of high-precision occasions.

Method used

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  • Signal identification device and method
  • Signal identification device and method
  • Signal identification device and method

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Experimental program
Comparison scheme
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Embodiment 1

[0024] figure 1 It is a schematic structural diagram of a signal recognition device provided in Embodiment 1 of the present invention. The signal recognition device provided in the embodiment of the present invention can execute the signal recognition method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial Effect. The device includes a digital processor 101, a transmitter transducer 102, a modem 103 and a receiver transducer 104 electrically connected in sequence; the digital processor 101 is used to control the first Road signal parameters and second road signal parameters; the transmitting end transducer 102 is used to send the first road signal and the second road signal; the modem 103 is used for the first road signal and the second road signal The signal is modulated to obtain a modulated signal; the transducer 104 at the receiving end is used to receive the modulated signal.

[0025] The above-mentioned digita...

Embodiment 2

[0035] image 3 It is a schematic flow chart of a signal identification method provided by Embodiment 2 of the present invention. This embodiment is applicable to the case of detecting the duration of an echo signal. This method can be executed by a signal identification device, and specifically includes the following steps:

[0036] Step 310, generating a modulated signal according to the first signal and the second signal, the first signal and the second signal are separated by a preset time period.

[0037] In this embodiment, the first signal and the second signal are set by the digital processor, and the digital processor realizes the following process, for details, please refer to Figure 4 The schematic diagram of the working process of the digital processor is shown: initializing variables, controlling display, key input part, controlling transmission and receiving, waiting for AD acquisition interruption, storing AD data into memory, signal windowing, FIR filtering, s...

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Abstract

The embodiment of the invention discloses a signal identification device and method. The device comprises a digital processor, a transmitting end transducer, a modem and a receiving end transducer which are electrically connected in sequence, the digital processor is used for controlling the first path of signal parameters and the second path of signal parameters transmitted by the transmitting end transducer; the transmitting end transducer is used for transmitting a first path of signal and a second path of signal; the modem is used for modulating the first path of signal and the second pathof signal to obtain a modulation signal; and the digital processor is used for receiving the modulation signal so as to realize high identification precision, eliminate interference and meet the requirements of high-precision occasions.

Description

technical field [0001] Embodiments of the present invention relate to signal processing technologies, and in particular, to a signal identification device and method. Background technique [0002] Accurate identification of ultrasonic echo signals is a key part of ultrasonic application technology, and it is widely used in medical ultrasound, flow measurement, gas phase measurement and other fields. [0003] Most of the identification methods currently used are signal peak identification, that is, detection is performed after receiving the echo signal, and the time corresponding to the simple identification threshold is taken as the time when the echo signal is received. [0004] This method has low recognition accuracy and is susceptible to interference, which cannot meet the needs of high-precision occasions. Contents of the invention [0005] The invention provides a signal identification device and method to realize high identification accuracy, eliminate interference...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/00G01D11/00
CPCH04L27/0012G01D11/00
Inventor 姜超雷战胜李冰雨
Owner SHANGHAI YINUO INSTR