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A signal demodulation method for discarded marine parameter profile measurement equipment

A technology for measuring ocean parameters and profiles, applied in the field of signal processing, can solve problems such as signal distortion, achieve the effect of solving signal distortion and facilitating engineering realization

Active Publication Date: 2022-03-18
青岛朗格润海洋科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a signal demodulation method for the discarded marine parameter profile measurement equipment, which is used to process the analog signal transmitted by the transmission line, and solves the problem of signal distortion

Method used

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  • A signal demodulation method for discarded marine parameter profile measurement equipment
  • A signal demodulation method for discarded marine parameter profile measurement equipment
  • A signal demodulation method for discarded marine parameter profile measurement equipment

Examples

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Embodiment 1

[0024] like figure 2 As shown, a signal demodulation method for a discarded marine parameter profile measurement device is used to process the analog signal transmitted by the transmission line, including the following steps:

[0025] Step 1: AD collects, obtains s (n), in the present embodiment, the sampling rate f of AD collects s is the probe baud rate f 0 10*a times, a is a real number greater than 1, such as f s =20*f 0 ;

[0026] Step 2: pass the Qualcomm equalizer k m (n) modify s(n) to get s 0 (n), Qualcomm equalizer k m (n) is the impulse response function corresponding to the high-pass filter K(s), K(s)*H(s)=1, and H(s) is the transfer function of the channel.

[0027] Step 3: pair s 0 (n) Carry out quantization, decoding and verification calculations to obtain output.

[0028] The principle of this embodiment is as follows. The channel model used for data transmission of the discarded ocean parameter profile measurement equipment is as follows: image 3 A...

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Abstract

The invention discloses a signal demodulation method for a discarded marine parameter profile measurement device, comprising the following steps: AD acquisition, quantification, decoding and verification, characterized in that: AD acquisition, s(n) is obtained, and then via Qualcomm Equalizer k m (n) modify s(n) to get s 0 (n), Qualcomm equalizer k m (n) is the impulse response function corresponding to the high-pass filter K(s), K(s)*H(s)=1, H(s) is the transfer function of the channel, and the method of the present invention solves the problem of signal distortion.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a signal demodulation method for a discarded ocean parameter profile measurement device. Background technique [0002] Disposable marine parameter profile measurement equipment is used to measure the parameter profile of seawater, such as temperature profile, salt profile, sound velocity profile, etc., and is suitable for use on various ships sailing or moored. The principle of measuring equipment such as figure 1 Shown: the sensor is packaged in the probe, the probe is launched into the water by the launch device, the probe measures the relevant parameters in real time during the descent process, the measurement circuit inside the probe completes the encoding of the relevant parameters in real time, and the decoded data is transmitted through the slender built-in probe The wires are synchronously transmitted to the deck units on board in the form of analog signals, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C13/00
CPCG01C13/00
Inventor 张勐宁肖灵王晓东崔杰于钟德高子世孟丽曾梦洁
Owner 青岛朗格润海洋科技有限公司