Radio transmitter, radio receiver, system and method with a radio transmitter and radio receiver
AssigneeSymeo GmbH
InventorsMartin Vossiek, Peter Gulden, Sven Röhr
Life of this patent
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Abstract
A radio transmitter is provided at least comprising a signal generator for generating a continuous signal and an antenna for outputting a transmission signal, wherein at least one output of the signal generator is connected with at least one input of the antenna. Herein, the signal generator is connected with the antenna via an interrupt unit connected between the two for selectively interrupting and maintaining a signal connection between the signal generator and the antenna.
Claims20
A radio receiver for receiving a frequency-modulated and pulse-shaped radio signal, comprising:
- at least one mixer;
- and
- a receiver element that receives a pulse wherein a duration of a pulse period is shorter than a duration of a frequency modulation of the received frequency-modulated and pulse-shaped radio signal;
- wherein:
- the at least one mixer is configured for mixing the received frequency-modulated and pulse-shaped signal with a mixing signal, wherein the mixing signal has only similar or identical frequency-modulation to the signal of said received frequency-modulated and pulse-shaped radio signal;
- and
- the radio receiver is configured to extract at least one pair of associated spectral lines from the received frequency-modulated and pulse-shaped radio signal, in particular spectral lines of equal order and known symmetry position.
A radio transmitting/receiving system of at least one radio transmitter and at least one radio receiver or at least one radio transmitter and receiver for receiving a signal emitted by said radio transmitter, in which:
- the at least one radio receiver or the at least one radio transmitter and receiver is configured
- for receiving a frequency-modulated and pulse-shaped radio signal, wherein a duration of a pulse period is shorter than a duration of a frequency modulation of the received frequency-modulated and pulse-shaped radio signal,
- which comprises at least one mixer for mixing the received frequency-modulated and pulse-shaped radio signal with a mixing signal, wherein the mixing signal has similar or identical frequency-modulation to the signal of said received frequency-modulated and pulse-shaped radio signal;
- wherein:
- the receiver is configured to extract at least one pair of associated spectral lines from the received frequency-modulated and pulse-shaped radio signal, in particular spectral lines of equal order and known symmetry position.
A method for receiving frequency-modulated and pulse-shaped radio signal, wherein a duration of a pulse period is shorter than a duration of a frequency modulation of the received frequency-modulated and pulse-shaped radio signal, comprising:
- mixing the received frequency-modulated and pulse-shaped radio signal with a mixing signal, wherein the mixing signal has similar or identical frequency-modulation to the signal of said received frequency-modulated and pulse-shaped radio signal;
- filtering, especially low pass filtering of the mixed signal, analog-to-digital converting of the filtered signal and signal evaluation of the converted signal;
- and extracting of at least one pair of associated spectral lines from the received frequency-modulated and pulse-shaped radio signal, in particular spectral lines of equal order and known symmetry position.
Dependencies are inferred from the claim text.