A review of low bit-rate speech codec for satellite communication
Year: 2026
Type: article
Abstract: With the advancement of the space-integrated-ground network, device-to-satellite communication is transitioning from concept to reality. Achieving stable and clear voice communication with limited satellite link resources is a key challenge for the industry. Due to the bandwidth limitations, high path loss, and high transmission delays of satellite channels, speech codecs used in terrestrial networks are not directly adaptable to satellite communication scenarios. Therefore, low bit-rate speech codec is crucial for satellite voice services. Based on this, the low bit-rate speech codec technologies for satellite communication were systematically summarized, the principles, characteristics, and performance evaluations of mainstream technical routes were introduced, the advantages and disadvantages of each method were analyzed, and future research directions were prospected.
Authors: Wei Chenguang, Xu Jiayi, Guo Meng, Yang Lei
Language: Chinese
Topic: Speech and Audio Processing
Subfield: Signal Processing
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7134222907