DELPH2™: Digital Acquisition and Processing for Single-Channel Seismic
by ELICS

Software Overview

DELPH2 is a dual-channel seismic system that is widely used for site survey investigation, pipeline 
routes, and engineering geophysics.
Digital recording and processing drastically improve the use of the data collected.
Two independent seismic channels with two sampling frequencies and two triggering rates are 
provided to optimize on-site recording.
Real-time processing and display offers quality control of both sources and receivers.
Off-line processing includes:
•	Predictive deconvolution
•	Time varying filter
•	Wave shaping
•	Interactive interpretation

Features and Benefits

•	Unique dual-channel system
•	Integrated interpretation acquisition
•	Both real-time and off-line processing
•	PC based, menu driven

Processor and System Specifications

•	Devices supported: TMS320C31, PC/AT/486 (at least) host processor
•	300-Mbytes hard disk
•	Thermal plotter
•	Graphic board, TIGA compatible
•	High-resolution display

Usage Limitations or Performance Considerations

System performance:
•	Sampling frequency: 1 kHz to 48 kHz
•	Recording length: up to 10 s 
Interface description:
•	Sensor interface
•	Maximum input level: 5-V eff.
•	Minimum input level full scale: 1 mV eff.
•	Input impedance: 1 MOhm
•	Programmable gain sensor interface: 0 to 70 dB
•	Noise level at 3 microV: -110 dB
•	Crosstalk: 81 dB at full scale
•	Short order interface: TTL level
•	Navigation interface: RS-232 serial port

Availability

DELPH2 is available now over six distributors around the world.
Product is delivered with a one-year warranty against defect in manufacturing.
 Installation, training, and maintenance agreement also available directly from ELICS.

Company Background and Contact Information

Specialized in digital signal processing, real-time processing and digital signal processors (DSP), 
ELICS has made available a complete offer that covers the whole life cycle of a project, from 
planning to hardware and software integration.
In addition to this service activity, ELICS develops and markets software products designed for 
acquisition and processing of seismic and side sonar data.
Contact:	Robert Girault
		ELICS
		112 rue Brancion
		75015 Paris
		France
		+33 14419 65 80
		Fax: +33 l 44 19 65 89