Accession Number:

AD0760336

Title:

A Multichannel Pulse Code Modulation System for Data Collection and Transmission from Oceanographic Buoys,

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF METEOROLOGY

Personal Author(s):

• Morey,Kenneth A.

Report Date:

1973-03-30

Pagination or Media Count:

18.0

Abstract:

The report describes a multichannel pulse sampling system used with pulse type anemometers and current meters on an oceanographic buoy. The system was built to make it possible to transmit five cup anemometers and five current meter signals via two FM subcarrier channels. The system clock drives the sampling sequences and is also transmitted on a separate FM subcarrier channel. The system is designed with an on-line or delayed breakout capability and will interface with either analog or digital processing devices. The breakout system is described. Author

Descriptors:

• (*DATA TRANSMISSION SYSTEMS
• PULSE CODE MODULATION)
• (*OCEAN CURRENTS
• DETECTORS)
• (*WIND
• ANEMOMETERS)
• TELEMETER SYSTEMS
• FREQUENCY MODULATION
• MULTIPLEXING
• LOGIC CIRCUITS

Subject Categories:

• Atmospheric Physics
• Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE