Adaptive Morse code communication system for severely disabled individuals.
Morse code with an easy-to-operate, single switch input system has been shown to be an excellent communication adaptive device. Because maintaining a stable typing rate is not easy for the disabled, the automatic recognition of Morse code is difficult. Therefore, a suitable adaptive automatic recognition method is needed. This paper presents the application of a Least-Mean-Square algorithm to adaptive Morse code recognition for persons with impaired hand coordination and dexterity. Four processes are involved in this adaptive Morse code recognition method: space recognition, tone recognition, adaptive processing, and character recognition. Statistical analyses demonstrated that the proposed method results in a better recognition rate for the participants tested in comparison to other methods from the literature.
Yang
C H
CH
Department of Electronic Engineering, National Kaohsiung Institute of Technology, Kaohsiung, Taiwan, ROC. chyang@cc.nkit.edu.tw
D000162:Acoustics; D000465:Algorithms; D001698:Biomedical Engineering; D003143:Communication Devices for People with Disabilities; D006225:Hand; D006801:Humans; D016018:Least-Squares Analysis; D012815:Signal Processing, Computer-Assisted