Abstract: A code division multiple access (CDMA) communications device includes a CDMA receiver to isolate a CDMA signal, and a processor to generate a quantized sample representation of the CDMA signal. The processor performs a hard correlation between the quantized sample representation of the CDMA signal and a quantized representation of a reference to generate a coarse time alignment. Based upon the coarse time alignment, the processor performs a soft correlation between actual values of the CDMA signal and the reference.

Abstract: Certain embodiments of the present invention provide a system for improved data communications within a remote sensor system. The system includes a sensor node. The sensor node is adapted to generate data based at least in part on a detected event. The sensor node is adapted to communicate the data based at least in part on a rule. Certain embodiments of the present invention provide a method for improved data communications within a remote sensor system. The method includes detecting an event, generating data based at least in part on the event, processing the data based at least in part on a rule, and communicating the data when the rule satisfied.

Abstract: A code division multiple access (CDMA) communications device includes a CDMA receiver to isolate a CDMA signal, and a processor to generate a quantized sample representation of the CDMA signal. The processor performs a hard correlation between the quantized sample representation of the CDMA signal and a quantized representation of a reference to generate a coarse time alignment. Based upon the coarse time alignment, the processor performs a soft correlation between actual values of the CDMA signal and the reference.

Abstract: To avoid signal jamming, a method is provided for selecting a dwell channel on a receiver in a frequency hopping communication system. The method includes: measuring a noise level on channels over which a data signal is received at the receiver; selecting a dwell channel based on the estimated noise levels, where the dwell channel having the lowest noise level amongst a group of permissible channels over which to acquire a signal from a transmitter; and tuning the receiver to the selected dwell channel during a search state in which the receiver attempts to synchronize with a transmitter.

Abstract: To avoid signal jamming, a method is provided for selecting a dwell channel on a receiver in a frequency hopping communication system. The method includes: measuring a noise level on channels over which a data signal is received at the receiver; selecting a dwell channel based on the estimated noise levels, where the dwell channel having the lowest noise level amongst a group of permissible channels over which to acquire a signal from a transmitter; and tuning the receiver to the selected dwell channel during a search state in which the receiver attempts to synchronize with a transmitter.

Abstract: To avoid signal jamming, a method is provided for selecting a dwell channel on a receiver in a frequency hopping communication system. The method includes: measuring a noise level on channels over which a data signal is received at the receiver; selecting a dwell channel based on the estimated noise levels, where the dwell channel having the lowest noise level amongst a group of permissible channels over which to acquire a signal from a transmitter; and tuning the receiver to the selected dwell channel during a search state in which the receiver attempts to synchronize with a transmitter.

Abstract: Certain embodiments of the present invention provide a system for improved signal processing within a remote sensor system. The system includes a detection component and a classification component. The detection component is adapted to detect an event. The classification component is adapted to classify the event based at least in part on a situation. Certain embodiments of the present invention provide a method for improved signal processing within a remote sensor system. The system includes determining a situation, detecting an event, and classifying the event based at least in part on a situation.

Abstract: Certain embodiments of the present invention provide a system for improved signal processing within a remote sensor system. The system includes a detection component and a processing component. The detection component is adapted to detect an event and generate a signal based at least in part on the event. The processing component adapted to determine an envelope of the signal based at least in part on a situation. Certain embodiments of the present invention provide a method for improved signal processing within a remote sensor system. The system includes detecting an event, generating a signal based at least in part on the event, and determining an envelope of the signal based at least in part on a situation.

Abstract: Certain embodiments of the present invention provide a system for improved signal processing within a remote sensor system. The system includes a detection component and a processing component. The detection component is adapted to detect an event and generate a signal based at least in part on the event. The processing component adapted to process a signal based at least in part on a situation. Certain embodiments of the present invention provide a method for improved signal processing within a remote sensor system. The method includes determining a situation, detecting an event, generating a signal based at least in part on the event, and processing the signal based at least in part on the situational parameter.

Abstract: Certain embodiments of the present invention provide a system for improved data communications within a remote sensor system. The system includes a control center node. The control center is adapted to receive data, process the data based at least in part on a rule, and notify a user when the rule is satisfied. Certain embodiments of the present invention provide a method for improved data communications within a remote sensor system. The method includes detecting an event, generating data based at least in part on the event, processing the data based at least in part on a rule, and notifying a user when the rule is satisfied.

Abstract: A system and method improves ECCM and data payload for a multi-h continuous phase modulated waveform with the addition of frequency hopping capabilities. The system and method exploit the short constraint length and rotational invariance of the multi-h CPM waveform to enable frequency hopping using current system capabilities. The transmitted data is structured such that the initial phase state of each hopping frame is in the zero state and the final phase state of each hopping frame is cycled to zero by the addition of flushing symbols and transition symbols. The transition symbols allow the oscillator to change frequency without disrupting the phase progression. The system and method uses synchronous demodulation of the transmitted data at a plurality of phase offsets and determines the best phase offset based on the total sum of the branch metrics for each symbol and phase offset.

Abstract: An unattended sensor is provided for use in a surveillance system. The sensor is generally comprised of: a detector that generates an electrical signal in response to a physical stimulus proximate to the sensor; a signal processor adapted to receive the electrical signal from the detector and operable to generate an event message based on the electrical signal; a transceiver operable to send and receive messages over a wireless radio link; and a channel access mechanism operable to negotiate access to the radio link in accordance with an access protocol, where the access protocol is employed by radios and other communication devices in the system.

Abstract: Certain embodiments of the present invention provide a system for improved signal processing within a remote sensor system. The system includes a detection component and a processing component. The detection component is adapted to detect an event and generate a signal based at least in part on the event. The processing component adapted to process a signal based at least in part on a situation. Certain embodiments of the present invention provide a method for improved signal processing within a remote sensor system. The method includes determining a situation, detecting an event, generating a signal based at least in part on the event, and processing the signal based at least in part on the situational parameter.

Abstract: Certain embodiments of the present invention provide a system for improved signal processing within a remote sensor system. The system includes a detection component and a classification component. The detection component is adapted to detect an event. The classification component is adapted to classify the event based at least in part on a situation. Certain embodiments of the present invention provide a method for improved signal processing within a remote sensor system. The system includes determining a situation, detecting an event, and classifying the event based at least in part on a situation.

Abstract: Certain embodiments of the present invention provide a system for improved data communications within a remote sensor system. The system includes a control center node. The control center is adapted to receive data, process the data based at least in part on a rule, and notify a user when the rule is satisfied. Certain embodiments of the present invention provide a method for improved data communications within a remote sensor system. The method includes detecting an event, generating data based at least in part on the event, processing the data based at least in part on a rule, and notifying a user when the rule is satisfied.

Abstract: Certain embodiments of the present invention provide a system for improved signal processing within a remote sensor system. The system includes a detection component and a processing component. The detection component is adapted to detect an event and generate a signal based at least in part on the event. The processing component adapted to determine an envelope of the signal based at least in part on a situation. Certain embodiments of the present invention provide a method for improved signal processing within a remote sensor system. The system includes detecting an event, generating a signal based at least in part on the event, and determining an envelope of the signal based at least in part on a situation.

Abstract: Certain embodiments of the present invention provide a system for improved data communications within a remote sensor system. The system includes a sensor node. The sensor node is adapted to generate data based at least in part on a detected event. The sensor node is adapted to communicate the data based at least in part on a rule. Certain embodiments of the present invention provide a method for improved data communications within a remote sensor system. The method includes detecting an event, generating data based at least in part on the event, processing the data based at least in part on a rule, and communicating the data when the rule satisfied.

Abstract: A system and method of automatic gain control (AGC) processing of digital signals using Block AGC to acquire the signal and sample-by-sample AGC to track the signal.

Abstract: A system and method of automatic gain control (AGC) processing of digital signals using Block AGC to acquire the signal and sample-by-sample AGC to track the signal.