A pseudo-random signal dynamic configuration system and method
A pseudo-random signal and dynamic configuration technology, applied in the field of geophysical exploration, can solve problems such as signal waveform solidification, difficulty in generating combined waveform sequences, and inability to dynamically configure, achieving the effect of fast configuration and less storage space
Active Publication Date: 2019-03-22
湖南继善高科技有限公司
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Problems solved by technology
[0003] At present, the geophysical exploration equipment developed by the mainstream application of pseudo-random signals in the existing technology generally has solidified signal waveforms, which cannot be dynamically configured according to actual needs. It is difficult to generate large, long or complex combined waveform sequences, and the output sequence has a "dead zone". Time" can not be configured and other issues
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[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] At present, for the configuration system of pseudo-random signals, two methods are often used:
[0022] 1. Using simple AND gates, OR gates, NOT gates, counters and other basic electronic circuit integrated chips, as well as some basic electronic components, through a certain electronic circuit combination design, the required target pseudo-random waveform signal...
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The embodiment of the invention provides a pseudorandom signal dynamic configuration system and method. The system comprises an MCU module and a CPLD module. The MCU module is connected with the CPLDmodule through a data interaction bus; the MCU module is configured to send the pre-stored or dynamically configured pseudo-random signal sequence byte code stream to the CPLD module after receiving the signal data loading request sent by the CPLD module. The CPLD module is used for synchronously outputting the target pseudorandom signal after the received sequence byte code stream is processed. The embodiment of the invention provides a pseudo-random signal dynamic configuration system and method. The pseudo-random signal sequence byte stream is pre-stored or dynamically configured in an MCUmodule, and the pseudo-random signal waveform is synchronously outputted after data processing by a CPLD module. The system and method provided by the embodiment of the invention can quickly configuresignal waveforms according to requirements, and can dynamically configure large, long and complex combined waveform sequences with less storage space.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of geophysical exploration, and in particular to a system and method for dynamically configuring pseudo-random signals. Background technique [0002] A pseudo-random signal is a signal that looks random and irregular, but is actually regular and not random. Electrical prospecting needs to use a certain signal to stimulate. In addition to the magnetotelluric (MT) method and the natural electric field (SP) method using natural electric (magnetic) fields as field sources, the direct current (DC) method uses a DC power supply to excite polarization. (IP) method and artificial source electromagnetic method (CSAMT or TEM) mostly use continuous periodic rectangular square wave as excitation (although sinusoidal current wave can also be used in principle). The pseudo-random signal involved in this patent is a kind of a n Sequence-based pseudorandom signals. In the controllable source el...
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IPC IPC(8): G06F7/58G01V3/08
CPCG01V3/08G06F7/582
Inventor 何继善李芳书尹文斌
Owner 湖南继善高科技有限公司