Measuring device and measuring method for systematic error detection
First Claim
1. A measuring device comprising:
- a first antenna configured to receive a first signal, and a second antenna configured to receive a second signal; and
a processor configured to determine a first variable and a second variable based at least in part on the first signal and the second signal, to determine a baseline variance of each of one or more of the first variable and the second variable, to determine a variance of each of one or more of the first variable and the second variable, and to determine a presence or absence of at least one systematic error of the received first signal and the received second signal, based on the determined baseline variances of the first variable and the second variable and the determined variances of the first variable and the second variable; and
wherein the measuring device is configured to measure an electromagnetic signal, and wherein the first antenna is configured to receive the electromagnetic signal as the first signal, and the second antenna is configured to receive the electromagnetic signal as the second signal, and wherein the presence or absence of the at least one systematic error is determined with respect to the electromagnetic signal,wherein the processor is further configured to determine one or more of a first variance quotient by dividing the variance of the first variable by the baseline variance of the first variable, and a second variance quotient by dividing the variance of the second variable by the baseline variance of the second variable, and to compare each of the one or more first and second variance quotients with a respective variance threshold,wherein, when the comparison reveals that at least one of the first and second variance quotients is above the respective variance threshold, the processor determines that at least one systematic error is present in the electromagnetic signal, and, when the comparison reveals that at least one of the first and second variance quotients is below the respective variance threshold, the processor determines that no systematic errors are present in the electromagnetic signal, andwherein the first variable is a ratio of a power of a measuring point of the first signal and a power of a measuring point of the second signal simultaneous with the measuring point of the first signal, and wherein the second variable is a phase difference of the measuring point of the first signal and the measuring point of the second signal.
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Accused Products
Abstract
A measuring device comprises a processing unit, a first antenna adapted to receive a first signal, and a second antenna, adapted to receive a second signal. The processing unit comprises a baseline unit adapted to determine a baseline variance of a first variable and/or a second variable. Moreover, it comprises a variance unit adapted to determine a variance of the first variable and/or the second variable. The first variable and the second variable are each at least initially derived from at least the first signal and the second signal. The processing unit furthermore comprises an error unit, adapted to determine if a systematic error is present, based on the baseline variance and the variance of the first variable and/or the second variable.
6 Citations
11 Claims
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1. A measuring device comprising:
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a first antenna configured to receive a first signal, and a second antenna configured to receive a second signal; and a processor configured to determine a first variable and a second variable based at least in part on the first signal and the second signal, to determine a baseline variance of each of one or more of the first variable and the second variable, to determine a variance of each of one or more of the first variable and the second variable, and to determine a presence or absence of at least one systematic error of the received first signal and the received second signal, based on the determined baseline variances of the first variable and the second variable and the determined variances of the first variable and the second variable; and wherein the measuring device is configured to measure an electromagnetic signal, and wherein the first antenna is configured to receive the electromagnetic signal as the first signal, and the second antenna is configured to receive the electromagnetic signal as the second signal, and wherein the presence or absence of the at least one systematic error is determined with respect to the electromagnetic signal, wherein the processor is further configured to determine one or more of a first variance quotient by dividing the variance of the first variable by the baseline variance of the first variable, and a second variance quotient by dividing the variance of the second variable by the baseline variance of the second variable, and to compare each of the one or more first and second variance quotients with a respective variance threshold, wherein, when the comparison reveals that at least one of the first and second variance quotients is above the respective variance threshold, the processor determines that at least one systematic error is present in the electromagnetic signal, and, when the comparison reveals that at least one of the first and second variance quotients is below the respective variance threshold, the processor determines that no systematic errors are present in the electromagnetic signal, and wherein the first variable is a ratio of a power of a measuring point of the first signal and a power of a measuring point of the second signal simultaneous with the measuring point of the first signal, and wherein the second variable is a phase difference of the measuring point of the first signal and the measuring point of the second signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A measuring method comprising:
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receiving, by a first antenna of a measuring device, a first signal; receiving, by a second antenna of a measuring device, a second signal; determining, by the measuring device, a first variable and a second variable based at least in part on the first signal and the second signal; determining, by the measuring device, a baseline variance of each of one or more of the first variable and the second variable; determining, by the measuring device, a variance of each of one or more of the first variable and the second variable; and determining, by the measuring device, a presence or absence of at least one systematic error of the received first signal and the received second signal based on the determined baseline variances of the first variable and the second variable and the determined variances of the first variable and the second variable; and wherein the first antenna receives an electromagnetic signal as the first signal, and the second antenna receives the electromagnetic signal as the second signal, and wherein the presence or absence of the at least one systematic error is determined with respect to the electromagnetic signal, wherein the method further comprises determining one or more of a first variance quotient by dividing the variance of the first variable by the baseline variance of the first variable, and a second variance quotient by dividing the variance of the second variable by the baseline variance of the second variable, and comparing each of the one or more first and second variance quotients with a respective variance threshold, wherein, when the comparison reveals that at least one of the first and second variance quotients is above the respective variance threshold, it is determined that at least one systematic error is present in the electromagnetic signal, and, when the comparison reveals that at least one of the first and second variance quotients is below the respective variance threshold, it is determined that no systematic errors are present in the electromagnetic signal, and wherein the first variable is a ratio of a power of a measuring point of the first signal and a power of a measuring point of the second signal simultaneous with the measuring point of the first signal, and wherein the second variable is a phase difference of the measuring point of the first signal and the measuring point of the second signal.
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Specification