Cavity Length Determination Apparatus
First Claim
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1. An apparatus comprising:
- a) a frequency selective electromagnetic receiver configured to receive a reradiating electromagnetic signal resulting from a cavity induced modulation phenomenon occurring within at least one cavity; and
b) a signal analyzing module configured to;
i) determine a power spectral density of the reradiating electromagnetic signal;
ii) observe frequencies at which the amplitude modulation of the power spectral density peaks; and
iii) determine a cavity length employing the frequencies of the power spectral density peaks.
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Abstract
Embodiments include an apparatus comprising a frequency selective electromagnetic receiver and a signal analyzing module. The frequency selective electromagnetic receiver is configured to receive a reradiating electromagnetic signal resulting from a cavity induced modulation phenomenon occurring within cavit(ies). The signal analyzing module is configured to: determine a power spectral density of the reradiating electromagnetic signal. Frequencies are observed at which the amplitude modulation of the power spectral density peaks. A cavity length is determined employing the frequencies of the power spectral density peaks.
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Citations
20 Claims
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1. An apparatus comprising:
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a) a frequency selective electromagnetic receiver configured to receive a reradiating electromagnetic signal resulting from a cavity induced modulation phenomenon occurring within at least one cavity; and b) a signal analyzing module configured to; i) determine a power spectral density of the reradiating electromagnetic signal; ii) observe frequencies at which the amplitude modulation of the power spectral density peaks; and iii) determine a cavity length employing the frequencies of the power spectral density peaks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification