Accession Number:

AD0919788

Title:

Drone Control and Data Retrieval System (DCDRS). Preliminary Design Study Final Report. Volume III. Trade Studies and Analyses. Part XI. Error Control for Command and Telemetry Trade Study.

Descriptive Note:

Technical rept. 5 Mar-5 Oct 73.

Corporate Author:

SPERRY UNIVAC ST PAUL MN DEFENSE SYSTEMS DIV

Personal Author(s):

Report Date:

1974-04-01

Pagination or Media Count:

114.0

Abstract:

The subject of this trade study is error control techniques. The purpose of the study is to determine the optimum error detection andor correction techniques for DCDRS. The objective is to increase system reliability, improve anti-jam performance, reduce the probability of tactical errors, and reduce power requirements for equivalent link performance while still maintaining good throughout low rejection rate. The use of error correction coding for communication links operating in a jamming environment affords the system two advantages. The most obvious advantage is that it allows the system to meet the required message error rate performance with less energy per bit when the main noise source is considered as additive Gaussian noise. The difference in the required values of EbNo with coding and EbNo without coding to meet the specificed error performance is known as coding gain. The second advantage of error correction coding is that it allows a system to obtain error rates that could never to achieved in an uncoded system.

Descriptors:

• *TELEMETERING DATA
• *REMOTELY PILOTED VEHICLES
• *COMMAND GUIDANCE
• *COMMAND AND CONTROL SYSTEMS
• *RADIO ANTIJAMMING
• *RADIO LINKS
• TRADE OFF ANALYSIS
• ERRORS
• ERROR CORRECTION CODES
• FLIGHT CONTROL SYSTEMS
• RADIOFREQUENCY POWER
• CODING
• GAIN
• PERFORMANCE(ENGINEERING)
• ACCURACY
• DISPLAY SYSTEMS
• LAUNCHING
• RECOVERY
• RADIO RELAY SYSTEMS

Subject Categories:

• Pilotless Aircraft
• Radio Countermeasures
• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE