Interoperable Voice Communications: Test and Selection of STANAG 4591
نویسندگان
چکیده
This paper describes the evaluation, test and selection of STANAG 4591, the future NATO Narrow Band Voice Coder (NBVC). STANAG 4591 will enable high performance interoperable secure speech communications in harsh acoustic and channel error environments at rates of 1.2kbps and 2.4kbps. The low data rate requirements of this voice coder allow it to operate on channels with low throughput, such as wireless mobile networks. However, applying low rate voice coding to channels carrying mixed voice and data traffic allows increased capacity for data. This voice coder will enhance the quality and intelligibility of voice communications to NATO commanders in the field.
منابع مشابه
Description of the French Nato Candidate
This paper describes the narrow-band speech coder that was proposed by France as a candidate to the new NATO standard STANAG-4591. This dual–rate coder at 1.2 and 2.4 kbps is based on the HSX (Harmonic & Stochastic eXcitation) algorithm.. The 2.4 kbps version was first developed by the University of Sherbrooke [1], then refined by Thales Communications (formerly Thomson-CSF Communications). An ...
متن کاملReal-Time Implementation of STANAG 4539 High-Speed HF Modem
High-frequency (HF) communications have been used by military organizations for more than 90 years. The opportunity of very long range communications without the need for advanced equipment makes HF a convenient and inexpensive alternative of satellite communications. Besides the advantages, voice and data transmission over HF is a challenging task, because the HF channel generally suffers from...
متن کاملLegal Protection of the Right to Voice
Right on voice is one of the rights which protect of person’s voice and sound and prohibit of imitation (sound effects) and sound forgery. Today on the light of increasing developments of communications this right includes some forms and instances which protected by legal systems in different ways. In some of the legal systems, this right has recognized on the basis of personality rights and ri...
متن کاملClassification of Architectural Styles based on the Dimensions of the Integration of Hospital Information Systems
Introduction: Hospital information system (HIS) is a comprehensive software for integrating patient information for sending and exchanging health information between wards and other medical centers in order to accelerate the process of patient care and treatment, improve quality, and increase patient satisfaction. The advent of diverse and heterogeneous health care information systems in the fi...
متن کاملComparing the Voice Handicap Index Scores in Groups with Structural and Functional Voice Disorders
Objective: The effects of voice disorders vary from person to person. Occupation, work environment, life, and family reaction are variables that affect one’s perception of his/her own as an impaired voice. Voice Handicap Index (VHI) has not yet been used to compare the degree of voice disorders. Assuming that the quality of life may be different under a variety of voice disorders and that diffe...
متن کامل