Open Range Pitch Tracking for Carrier Frequency Difference Estimation from HF Transmitted Speech

Autor:	Schmalenstroeer, Joerg, Heitkaemper, Jens, Ullmann, Joerg, Haeb-Umbach, Reinhold
Rok vydání:	2021
Předmět:	Computer Science - Sound Electrical Engineering and Systems Science - Audio and Speech Processing
Druh dokumentu:	Working Paper
Popis:	In this paper we investigate the task of detecting carrier frequency differences from demodulated single sideband signals by examining the pitch contours of the received baseband speech signal in the short-time spectral domain. From the detected pitch frequency trajectory and its harmonics a carrier frequency difference, which is caused by demodulating the radio signal with the wrong carrier frequency, can be deduced. A computationally efficient realization in the power cepstral domain is presented. The core component, i.e., the pitch tracking algorithm, is shown to perform comparably to a state of the art algorithm. The full carrier frequency difference estimation system is tested on recordings of real transmissions over HF links. A comparison with an existing approach shows improved estimation accuracy, both on short and longer speech utterances Comment: Submitted to EUSIPCO 2021
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2103.01599 Zobrazit plný text záznamu View this record from Arxiv