This paper studies the state-observability problem for single observer passive locating and tracking using radiation reflected by target from external transmitter.

本文研究利用外辐射源的单站无源定位和跟踪技术的可观测性问题。

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The foundation is given to design the good external modulator optical transmitter by calculating CSO.

为设计性能良好的外调制光发射机提供了依据。

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USB transmitter and no external antenna.

而且USB发射器又没有外置天线。

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The dock is suggested to include an FM transmitter for piping navigation audio throughout your vehicle's sound system, as well as allowing external DAPs to be heard through more than just a built-in tweeter, but we're still waiting to see if TomTom plans on this being a standalone unit or if it fits better integrated into one's dash.

ENGADGET: TomTom DUO to hit CeBIT, tout handsfree calling