Acoustic Sensor Network Self-Localization: Experimental Results

نویسنده

  • J. N. Ash
چکیده

In this paper we present experimental results on propagation, coherence, and time delay estimation (TDE) in an acoustic microphone array. The primary goal is to understand the achievable accuracy of acoustic TDE using low-cost, commercial off the shelf (COTS) speakers and microphones. In addition, the experiment seeks to provide an empirical understanding of the effects of center frequency, bandwidth, and signal duration on TDE effectiveness. As part of this study, limited empirical signal propagation characteristics were obtained using this COTS equipment.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Acoustic time delay estimation and sensor network self-localization: Experimental results

Experimental results are presented on propagation, coherence, and time-delay estimation TDE from a microphone array in an outdoor aeroacoustic environment. The primary goal is to understand the achievable accuracy of acoustic TDE using low-cost, commercial off-the-shelf COTS speakers and microphones. In addition, through the use of modulated pseudo-noise sequences, the experiment seeks to provi...

متن کامل

Experimental Results for and Theoretical Analysis of a Self-Organizing Global Coordinate System for Ad Hoc Sensor Networks

We demonstrate that it is possible to achieve robust and reasonably accurate localization in a randomly placed wireless sensor network composed of inexpensive components of limited accuracy. We present an algorithm for creating an accurate local coordinate system, aligned with the global coordinates, without the use of global control, globally accessible beacon signals, or accurate estimates of...

متن کامل

Three Dimensional Localization of an Unknown Target Using Two Heterogeneous Sensors

Heterogeneous wireless sensor networks consist of some different types of sensor nodes deployed in a particular area. Different sensor types can measure different quantity of a source and using the combination of different measurement techniques, the minimum number of necessary sensors is reduced in localization problems. In this paper, we focus on the single source localization in a heterogene...

متن کامل

Improve range-free localization accuracy in wireless sensor network using DV-hop and zoning

In recent years, wireless sensor networks have drawn great attention. This type of network is composed of a large number of sensor nodes which are able to sense, process and communicate. Besides, they are used in various fields such as emergency relief in disasters, monitoring the environment, military affairs and etc. Sensor nodes collect environmental data by using their sensors and send them...

متن کامل

Deployment algorithms in Underwater Acoustic Wireless Sensor Networks: A Review

Deployment of sensors in the underwater acoustic sensor network is a very challenging task due to the complex 3d environment in underwater sensor networks because acoustic signal is affected by salinity, temperature, and pressure. The main objective of deployment algorithm is to achieve maximum coverage with a minimum number of underwater acoustic sensor nodes or surface gateways in underwater ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003