Related Experiment Video
Updated: Feb 2, 2026

Chromatin Isolation by RNA Purification ChIRP
Published on: March 25, 2012
Orthogonal Chirp Division Multiplexing for Underwater Acoustic Communication
Yiqi Bai1, Pierre-Jean Bouvet2
1College of Information Science and Technology, Ocean University of China, Qingdao 266100, China. byq@stu.ouc.edu.cn.
Abstract:
The objective of this study is to investigate a novel Underwater Acoustic Communication (UWAC) system based on a modulated chirp signal termed as Orthogonal Chirp Division Multiplexing (OCDM). Originating from the Fresnel transform, OCDM uses chirp signals to exploit the multipath diversity of the channel, achieving a good robustness against frequency fading, especially in the underloaded scenario where only a subset of the available waveforms is modulated. The implementation of the OCDM system for the UWAC scenario is described, and the performance results over an experimental water tank and realistic replayed underwater channel are compared against the traditional Orthogonal Frequency Division Multiplexing (OFDM) transmission scheme.
Related Concept Videos
Orthogonal Trajectories
Communication
Communication
Long Division of Polynomials
Cranial Part of Parasympathetic Division
The vagus nerve (cranial nerve X) alone accounts for approximately 75...
Neuronal Communication

