Broadband, Low-Cost, Coastal Sensor Nets

نویسندگان
چکیده

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Low-cost ultra-thin broadband terahertz beam-splitter.

A low-cost terahertz beam-splitter is fabricated using ultra-thin LDPE plastic sheeting coated with a conducting silver layer. The beam splitting ratio is determined as a function of the thickness of the silver layer--thus any required splitting ratio can be printed on demand with a suitable rapid prototyping technology. The low-cost aspect is a consequence of the fact that ultra-thin LDPE shee...

متن کامل

Broadband frequency invariant beamforming method with low computational cost

This paper presents a method for reducing the computational complexity required for farfield broadband beamforming. First, the propagating wave received by a linear or planar array of sensors is sampled efficiently on the multidimensional frequency plane in spatio-temporal sense so that the so-called non-physical area where no spectrum exists is filled with aliasing component. Next, the derived...

متن کامل

Low-cost, broadband static phase plate for generating atmosphericlike turbulence.

Over the past decade adaptive optics (AO) has proved its worth as AO systems have been used successfully on several telescopes to improve image resolution. As scientists and engineers push the technological state of the art in an effort to make bigger, faster, and better systems, it has become more and more important to test and verify the operation of these systems in a controlled laboratory s...

متن کامل

A Low Cost Broadband Probe for Electric Field Measurement

Design and fabrication of a low cost sensor for measuring electric field over a broad range of electromagnetic (EM) frequency is presented. The electric field probe consists of an electrically short dipole antenna and diode detector connected to an instrumentation amplifier via a high impedance line. The rectified diode voltage is conveyed over the high impedance line for real time data acquisi...

متن کامل

A Simple, Low Cost Optical Tilt Sensor

For the purpose of kinematic monitoring system a prototype relatively simple and low cost optical Tilt (or inclination) sensor with sensitivity of 50mV/o and a working range of ±50o is presented in this paper. The sensor consists of a cylindrical shaped transparent container with half filled color liquid and an optical source and detector. The sensor principle based on temporal changes in light...

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

ژورنال

عنوان ژورنال: Oceanography

سال: 2007

ISSN: 1042-8275

DOI: 10.5670/oceanog.2007.15