Low-frequency source for very long-range underwater communication

Mosca, Frédéric; Matte, Guillaume; Mignard, Vincent; Rioblanc, Maxence

doi:10.1121/1.4773199

Cited by 37 publications

(15 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Acoustics used for underwater communications is superior to electromagnetic and optical waves for larger distances [102], being able to transmit hundreds of bits for very long ranges (e.g. 1000 km) [101].…”

Section: Underwater Communicationsmentioning

confidence: 99%

Survey on Communication and Networks for Autonomous Marine Systems

Zolich

Palma²,

Kansanen

et al. 2018

J Intell Robot Syst

108

View full text Add to dashboard Cite

The rapid development of autonomous systems and Information and Communications Technologies (ICT) create new opportunities for maritime activities. Existing autonomous systems are becoming more powerful and utilise the capabilities of several types of devices such as Autonomous Underwater Vehicles (AUVs), Unmanned Surface Vehicles (USVs)sometimes referred as Autonomous Surface Vehicles (ASVs) -, Unmanned Aerial Vehicles (UAVs), moored and drifting systems and, recently emerging, autonomous vessels. Their importance in providing new services in maritime environments is undeniable and the opportunity for coordinated and interconnected operations is clear. However, continuous wide integration of various technologies in maritime environments still faces many challenges. Operations may take place in remote locations, so that dependence on third-party infrastructures such as satellite communication or terrestrial communication systems must be expected. The reliability, performance, availability, and cost of such systems are important issues that need to be tackled. This work reviews the major advancements on state-of-the-art autonomous maritime vehicles and systems, which are used in several different scenarios, from scientific research to transportation. Moreover, the paper highlights how available technologies can be composed in order to efficiently and effectively operate in maritime environments. Highlights of the trade-off between autonomy and communication requirements are provided and followed by an overview of promising communication and networking technologies that could encourage the integration of autonomous systems in maritime scenarios.

show abstract

Section: Underwater Communicationsmentioning

confidence: 99%

Survey on Communication and Networks for Autonomous Marine Systems

Zolich

Palma²,

Kansanen

et al. 2018

J Intell Robot Syst

108

View full text Add to dashboard Cite

show abstract

“…The lake trial was conducted with a distance of 300~400 m between the transmitter and receiver. The sea trial was conducted at a distance of approximately 20 km between the transmitter and receiver and at a depth of 1500 m. According to [20], the conducted range of communication can be regarded as long-range communication. From the results of various experiments, this paper demonstrates the performance of the proposed method in UWA communication.…”

Section: Introductionmentioning

confidence: 99%

Experimental Results of Underwater Acoustic Communication with Nonlinear Frequency Modulation Waveform

Youn

et al. 2021

Sensors

View full text Add to dashboard Cite

In this paper, we propose underwater acoustic (UWA) communications using a generalized sinusoidal frequency modulation (GSFM) waveform, which has a distinct ambiguity function (AF) and correlation function characteristic. For these reasons, it is more robust in multipath channels than the conventional chirp spread spectrum (CSS) with a linear frequency modulation (LFM) waveform. Four types of GSFM waveforms that are orthogonal to each other are applied for each symbol in the proposed method. To evaluate the performance of the proposed method, we compared the performances of the proposed method and conventional method by conducting diverse experiments: simulations, lake trials and sea trials. In the simulation results, the proposed method shows better performance than the conventional method. The lake trial was conducted with a distance of 300~400 m between the transmitter and receiver. As a result of the experiment, the average bit error rate (BER) of the proposed method is 3.52×10−2 and that of the conventional method is 3.52×10−1, which shows that the proposed method is superior to the conventional method. The sea trial was conducted at a distance of approximately 20 km between the transmitter and receiver at a depth of 1500 m, and the receiver was composed of 16 vertical line arrays (VLAs) with a hydrophone. The proposed method had a BER of 0.3×10−2 in one channel and was error free in the other.

show abstract

“…Recently, research on long-range acoustic communication (LRAC) has been actively underway [1][2][3][4][5][6][7], largely in the military arena, such as for autonomous underwater vehicles (AUVs) [4,6]. Especially in the military arena, LRAC should not only have reliable communication, but also confidentiality.…”

Section: Introductionmentioning

confidence: 99%

Long-Range Acoustic Communication Using Differential Chirp Spread Spectrum

Lee

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

Here, we propose a new modulation method using chirp spread spectrum (CSS) modulation to indicate the result of long-range acoustic communication (LRAC). CSS modulation had outstanding matched filter characteristics even though the channel was complex. The performance of the matched filter depends on the time–bandwidth product. We studied the method of using the same modulation method while increasing the amount of the time–bandwidth product. When differential encoding is applied, the de-modulation is made using the difference between the current symbol and the previous symbol. If the matched filter is applied using both the current and the previous symbol, such as the use of two symbols, the amount of the time–bandwidth product can be doubled, and this method can make the output of the matched filter larger. The proposed method was verified in lake and sea experiments, in which the experimental environment was analyzed and compared with the result using the channel impulse response (CIR) of the lake and sea. The lake experiment was conducted over a distance of about 100–300 m between the transmitter and receiver and at a depth of ~40 m. As a result of the communication, the conventional method’s bit error rate (BER) was 1.22×10−1, but the proposed method’s BER was 1.98×10−2. The sea experiment was conducted over a distance of ~90 km and at a depth of ~1 km, and the conventional method BER in this experiment was 1.83×10−4, while the proposed method’s BER was 0.

show abstract

Low-frequency source for very long-range underwater communication

Cited by 37 publications

References 9 publications

Survey on Communication and Networks for Autonomous Marine Systems

Survey on Communication and Networks for Autonomous Marine Systems

Experimental Results of Underwater Acoustic Communication with Nonlinear Frequency Modulation Waveform

Long-Range Acoustic Communication Using Differential Chirp Spread Spectrum

Contact Info

Product

Resources

About