Device for testing geophysical exploration digital package

Abstract

The invention provides a device for testing a geophysical exploration digital package, which comprises a signal receiving equalizing circuit, a first data signal conversion circuit, a control circuit, a second data signal conversion circuit and a signal pre-emphasis circuit, wherein the signal receiving equalizing circuit is used for performing signal equalizing on serial data received from the digital package to be tested; the first data signal conversion circuit is used for converting the serial data equalized by the signal into parallel data; the control circuit is used for outputting preconfigured analog parallel data to the second data signal conversion circuit, and comparing the parallel data converted by the first data signal conversion circuit with the analog parallel data so as to test the data transmission function of the digital package to be tested; the second data signal conversion circuit is used for converting the input parallel data into the serial data; and the signal pre-emphasis circuit is used for sending the serial data of the second data signal conversion circuit to the digital package to be tested after signal pre-emphasis processing is performed on the serial data. Through the device for testing the geophysical exploration digital package, more accurate and reliable reference data can be provided for the application of geophysical exploration.

Description

technical field [0001] The present invention relates to geophysical prospecting technology, in particular to a system, device and method for testing and realizing geophysical prospecting digital packages. Background technique [0002] Seismic data acquisition system is the most critical equipment in seismic exploration. Seismic exploration operation has the characteristics of large working range and many data acquisition and transmission devices. Therefore, it is very important to test a large number of data transmission units. [0003] The seismic data transmission unit is called a digital package, and the digital package can connect multiple acquisition channels and other transmission packages of the front and rear stages. Usually, multiple cascaded digital packets are towed by the ship responsible for seismic exploration operations. The digital packets close to the towing ship are called the front-level digital packets, and the digital packets far away from the towing shi...

AI Technical Summary

Problems solved by technology

It can be seen that the test workload of the digital package to be tested is heavy, and the test content is also many and complicated. It is obviously difficult to complete through manual testing.

[0009] However, in the existing seismic data acquisition system, there is no technical solution that can automatically test the digital package, which obviously does not meet the requirements of the growing seismic data application technology

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