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Your search keyword '"Lo, Sherman"' showing total 184 results
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184 results on '"Lo, Sherman"'

57. Getting control: off-the-shelf antennas for controlled-reception-pattern antenna arrays

Author

Chen, Yu-Hsuan, Lo, Sherman, Akos, Dennis M., De Lorenzo, David S., and Enge, Per

Subjects
Communications equipment, Antennas (Electronics), Cellular transmission equipment, Telecommunications equipment, Business, Telecommunications industry
Abstract

THE ANTENNA IS A CRITICAL COMPONENT OF ANY GNSS RECEIVING EQUIPMENT. It must be carefully designed for the frequencies and structures of the signals to be acquired and tracked. Important [...]

Published
2013

58. Secure Location Verification

Author

Becker, Georg T., primary, Lo, Sherman C., additional, De Lorenzo, David S., additional, Enge, Per K., additional, and Paar, Christof, additional

Published
2010
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59. The need for a robust, precise time and frequency alternative to GNSS

Author

Narins, Mitch, Enge, Per, Peterson, Ben, Lo, Sherman, Chen, Yu-Hsuan, Akos, Dennis, and Lombardi, Michael

Subjects
United States. Federal Aviation Administration, United States. Department of Homeland Security, Global Positioning System, Global Positioning System, Business, Telecommunications industry
Abstract

Positioning, navigation, and timing (PNT) services are key enablers of both essential safety and security applications and economically beneficial capacity and efficiency applications worldwide. Whether users are ground-based, sea-based, or [...]

Published
2012

60. Detecting false signals: with automatic gain control

Author

Borowski, Holly, lsoz, Oscar, Eklof, Fredrik Marsten, Lo, Sherman, and Akos, Dennis

Subjects
Communications equipment, Global Positioning System -- Equipment and supplies, Cellular transmission equipment, GPS receiver, Telecommunications equipment, Business, Telecommunications industry
Abstract

A component of most GPS receiver front-ends, the automatic gain control (AGC) can flag potential jamming and spoofing attacks. The detection method is simple to implement and accessible to most [...]

Published
2012

68. Security for insecure times: geoencryption with Loran

Author

Qiu, Di, Lo, Sherman, and Enge, Per

Subjects
Data security, Data security issue, Business, Telecommunications industry, Stanford University
Abstract

Location-based encryption can prevent stolen data from being decrypted outside a particular facility. Modernized Loran, hard to spoof and hard to jam, with good repeatable position accuracy and signal availability, [...]

Published
2007

78. Geometric rules for terrestrial radionavigation multipath mitigation by averaging

Author

Schneckenburger, Nicolas, Lo, Sherman, Walter, Michael, and Fiebig, Uwe-Carsten

Subjects
Nachrichtensysteme, APNT pseudolite ranging
Abstract

In this contribution, we present a method to analyze the effectiveness of multipath mitigation by extended averaging in the context of terrestrial radionavigation. We derive the requirements of extended averaging on the geometry between a ground station and an aircraft. Using that knowledge we are able to analyze the effectiveness of extended averaging for real world flight trajectories.

Published
2017

91. Feasibility of Fault Exclusion Related to Advanced RAIM for GNSS Spoofing Detection

Author

Kuusniemi, Heidi, primary, Blanch, Juan, additional, Chen, Yu-Hsuan, additional, Lo, Sherman, additional, Innac, Anna, additional, Ferrara, Giorgia, additional, Honkala, Salomon, additional, Bhuiyan, M. Zahidul H., additional, Thombre, Sarang, additional, S�derholm, Stefan, additional, Walter, Todd, additional, Phelts, R. Eric, additional, and Enge, Per, additional

Published
2017
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