Signal processing in acoustic systems for the capsule endoscopy

Data transmission is one of the most important procedures of the capsule endoscopy technology, which provides patients and physicians with a non-invasive method for diagnosing GI disorders. Data transmission from the capsule to an external data recording system is usually accomplished with an RF data communications channel. It is proposed to use ultrasound waves for transmission of images and telemetry information from a capsule inside a human body to outside receivers. Digital and analog signal processing for acoustic intra-body data transmission systems are considered. Modulation schemes for multi-path and single-path acoustic channels are proposed. Results of stochastic simulation and experimental testing of acoustic systems are discussed.