Pulselink, Inc.

USA As Represented by Secretary of the Navy

Rodolfo T Arrieta

John H Santhoff

Charles E Miller

Iris C Paustian

Ted R Clem

Tye A Langston

Donald W Jolly

An airborne deployment system and method for deploying an object designed. for a waterborne task. An unmanned aerial vehicle (UAV) has an object such as an unmanned underwater vehicle (UUV) releasably coupled thereto. The UAV is guided to a target site on a body of water in accordance with navigation. rules predicated on navigation capability of the UAV. The UUV Is released from the UAV at a location that is one of in the air and on the water in accordance with release rules predicated on the navigation capability of UAV.

System and method for airborne deployment of object designed for waterborne task

A system and method for mapping, radio-frequency (RF) noise, and estimating channel quality in a multi-channel ultra-wideband communication system is provided. One method includes placing a plurality of time bins within a plurality of time frames and assigning a plurality of UWB communication channels comprising selected time bins. RF noise amplitude data is then sampled from selected time bins. The sampled RF noise amplitude data from the time bins is then averaged, thereby obtaining an average RF noise amplitude in each of the plurality of channels. The RF noise amplitude indicates the amount of RF noise present in a channel. The channels may then be ranked based on the characteristics of the RF noise.

Mapping radio-frequency noise in an ultra-wideband communication system

A method of detecting a chemical species at a stand-off distance using a spectroscopy system, the method comprising the steps of providing a modulated light source emitting a first beam of light at a first wavelength incident to the chemical species, the first beam of light causing the chemical species to emit a signal, providing a spectral shifter a second beam of light at a second wavelength, the second beam of light causing a photochemical reaction in the chemical species to shift a spectrum of the light emitted from the chemical species, providing a detector positioned to detect the signal emitted from the chemical species, and providing a data processor system in communication with at least one of the detector and the modulated light source, the data processor system processing the signal to determine the identity of the chemical species.

Spectroscopy system for the detection of chemicals

A system, method and article of manufacture are provided for managing the transmission suitability of a channel in a multi access scheme. In general, information relating to noise associated with a channel is obtained. A potential effect of the noise on a transmission quality of the channel is then estimated based on the obtained information. Next, a rating is assigned to the channel based on the estimated potential effect. Based on the assigned rating, the channel is classified into a grade of service class. Information relating to the channel and its associated rating and grade of service class is then stored in a database.

Pre-testing and certification of multiple access codes

A system and a method for encoding and decoding ultra-wideband information are provided. An ultra-wideband transmission is encoded by positioning bipolar pulse pairs. The bipolar pulse pairs assist in detecting errors in the ultra-wideband transmission, before the entire transmission has been received. The transmission is analyzed for errors and an error rate is calculated. The calculated error rate is compared to one or more predefined acceptable error rate levels to determine whether the calculated error rate of the transmission is within at least one of the predefined acceptable error rate levels.

Encoding and decoding ultra-wideband information

A system and method for mapping radio-frequency (RF) noise, and estimating channel quality in a multi-channel ultra-wideband communication system is provided. One method includes placing a plurality of time bins within a plurality of time frames and assigning a plurality of UWB communication channels comprising selected time bins. RF noise amplitude data is then sampled from selected time bins. The sampled RF noise amplitude data from the time bins is then averaged, thereby obtaining an average RF noise amplitude in each of the plurality of channels. The RF noise amplitude indicates the amount of RF noise present in a channel. The channels may then be ranked based on the characteristics of the RF noise.

Briefly, the present invention provides a dynamic channel re-assignment capability between mobile units, base stations and sectors within base station coverage areas. The wireless devices used in the present invention may include impulse radio communication devices such as, for example ultra-wideband radio (also known as digital pulse wireless) communication devices. Ultra-wideband bandwidth and channel allocation can be effectively managed, even though link quality generally deteriorates near the outer boundary of the base station. By maintaining dual communications with an adjoining base station, the present invention reduces the bit error rate and maintains signal strength (e.g., RF signal strength). This procedure is termed a 'soft-handoff'.

Hand-off between ultra-wideband cell sites

A system, method and article of manufacture are provided for determining a location of a wireless device in a wireless communication system. In general, an initial request is transmitted to wireless devices having known locations for positioning information so that a location can be determined for a first wireless device having an undetermined location. Those wireless devices with known locations that receive the initial request in turn transmit positioning information to the first wireless device. If positioning information from less than a sufficient number of wireless devices with known location is received by the first mobile wireless device, an additional request is then transmitted for responses from these responding other wireless devices. After responses to the request from one or more of these responding other wireless devices are received, communication then occurs with at least a portion of the responding wireless devices to obtain information relating to the distance between the first wireless device and the responding wireless devices it is communicating with. Next, a location of the first wireless device is estimated using the information obtained from these responding other wireless devices and the positioning information received from the wireless devices with known locations.

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Panama City Beach, FL, United States of America

Rodolfo T Arrieta