@article{(Open Science Index):https://publications.waset.org/pdf/8306, title = {Real-Time Implementation of STANAG 4539 High-Speed HF Modem}, author = {S. SaraƧ and F. Kara and C.Vural}, country = {}, institution = {}, abstract = {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 Doppler shift and spread, multi-path, cochannel interference, and many other sources of noise. In constructing an HF data modem, all these effects must be taken into account. STANAG 4539 is a NATO standard for high-speed data transmission over HF. It allows data rates up to 12800 bps over an HF channel of 3 kHz. In this work, an efficient implementation of STANAG 4539 on a single Texas Instruments- TMS320C6747 DSP chip is described. The state-of-the-art algorithms used in the receiver and the efficiency of the implementation enables real-time high-speed data / digitized voice transmission over poor HF channels. }, journal = {International Journal of Electronics and Communication Engineering}, volume = {6}, number = {6}, year = {2012}, pages = {1289 - 1294}, ee = {https://publications.waset.org/pdf/8306}, url = {https://publications.waset.org/vol/66}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 66, 2012}, }