In an oscillator device that outputs a frequency signal based on an oscillation frequency of a crystal resonator and a frequency setting value, a frequency difference detector that obtains a difference value corresponding to a frequency difference between the output frequency of the oscillator device and an external clock signal and a temperature detector are disposed. An aging coefficient and a temperature characteristic coefficient are obtained based on a secular change of the difference value obtained in the frequency difference detector and a secular change of the detected temperature during a period where the external clock signal is obtained. Furthermore, a frequency correction value is calculated using the aging coefficient and the temperature characteristic coefficient during a holdover period, and the frequency correction value is added to the frequency setting value.

Phase and/or amplitude modulation device, comprising a TORP signal generator, and further including, during a phase modulation or a phase and amplitude modulation, a generator of a phase-modulated periodic signal of frequency F.sub.PRP applied to a control input of the power supply circuit of the TORP generator, and/or including, during an amplitude modulation or a phase and amplitude modulation: 2.sup.P TORP generators, a thermometric code generator on 2.sup.P bits coding an amplitude modulation, a TORP generator control circuit, applying or not, to the control input of the TORP generator power supply, the periodic signal of frequency F.sub.PRP depending on the bits of the thermometric code signal, and a processing circuit coupled to the outputs of the TORP generators, and configured to produce a linear combination of signals outputted by the TORP generators.

In an oscillator device that outputs a frequency signal based on an oscillation frequency of a crystal resonator and a frequency setting value, a frequency difference detector that obtains a difference value corresponding to a frequency difference between the output frequency of the oscillator device and an external clock signal and a temperature detector are disposed. An aging coefficient and a temperature characteristic coefficient are obtained based on a secular change of the difference value obtained in the frequency difference detector and a secular change of the detected temperature during a period where the external clock signal is obtained. Furthermore, a frequency correction value is calculated using the aging coefficient and the temperature characteristic coefficient during a holdover period, and the frequency correction value is added to the frequency setting value.

A method for controlling a signal envelope shape of modulation pulses in a driver of a wireless transmitter includes supplying a first voltage to the driver during a non-modulated state, supplying a second voltage configurable by a configurable modulation index value to the driver during a modulated state, switching between the non-modulated state and the modulated state comprising setting the modulation index value to configure the second voltage level at the same level as the first voltage and then switching between supplying the first voltage to the driver and supplying the second voltage to the driver, and filtering to a limited bandwidth the variations of the second voltage resulting from configuring the modulation index value.

A measuring system for performing over the air power measurements is provided. The measuring system comprises, within a single housing, a detector module, comprising a detector input, a transmitter module, comprising a transmitter output, and an antenna. The detector input and the transmitter output are at least temporarily connected. At least the transmitter output or the detector input are at least temporarily connected to the antenna.

Provided is a transmitter which can maximize the efficiency of rectification in a power-receiving electronic device irrespective of the distance therebetween. The transmitter transmits electric power to the electronic device through use of a microwave. The electronic device receives the microwave, converts the microwave to DC power, and uses the DC power as operation power. The transmitter includes a carrier wave generator for generating a carrier wave; a modulating signal generator for generating a modulating signal whose level increases, decreases, or increases and then decreases during one cycle; an amplitude modulator for amplitude-modulating the carrier wave generated by the carrier wave generator by, the modulating signal output from the modulating signal generator and for amplifying the modulated carrier wave and outputting the amplified, modulated carrier wave as a transmission signal; and an antenna for radiating the transmission signal output from the amplitude modulator into a space as the microwave.

Provided is a transmitter which can maximize the efficiency of rectification in a power-receiving electronic device irrespective of the distance therebetween. The transmitter transmits electric power to the electronic device through use of a microwave. The electronic device receives the microwave, converts the microwave to DC power, and uses the DC power as operation power. The transmitter includes a carrier wave generator for generating a carrier wave; a modulating signal generator for generating a modulating signal whose level increases, decreases, or increases and then decreases during one cycle; an amplitude modulator for amplitude-modulating the carrier wave generated by the carrier wave generator by, the modulating signal output from the modulating signal generator and for amplifying the modulated carrier wave and outputting the amplified, modulated carrier wave as a transmission signal; and an antenna for radiating the transmission signal output from the amplitude modulator into a space as the microwave.

An emissions management module for a mission management system of a moving platform, said emissions management module being configured to: obtain attribute data representative of (i) prevailing emissions control parameters in the form of an emissions control region defined by the relative locations of said platform and another node; and (ii) a direction of said emissions control region with respect to said platform; generate, using said attribute data, an emissions plan that complies with restrictions defined by said emissions control parameters, and includes at least an emissions limit defining: a) a maximum transmission power permitted to be utilised by an on-board antenna or portion of aperture antenna in a specified direction relative to said moving platform; and/or b) permissible antenna waveforms and/or a specified maximum emissions duration in said specified direction relative to said moving platform; and/or c) permitted or restricted usage of on-board sensors in a specified direction relative to said moving platform.

The present technology relates to a modulator and a modulation method for enabling provision of a highly convenient modulator. The modulator is configured to be input a first signal corresponding to one of a positive signal and a negative signal constituting a baseband signal of a differential signal, and a second signal having the same level as the first signal in one of an H level section in which the one signal is at an H level and an L level section in which the one signal is at an L level, and configured to generate a modulation signal obtained by modulating a carrier with the first and second signals to generate a modulation signal that is the amplitude shift keying (ASK)-modulated carrier with the baseband signal. The present technology can be applied to a case of modulating a carrier according to a baseband signal, for example.

The present technology relates to a modulator and a modulation method for enabling provision of a highly convenient modulator. The modulator is configured to be input a first signal corresponding to one of a positive signal and a negative signal constituting a baseband signal of a differential signal, and a second signal having the same level as the first signal in one of an H level section in which the one signal is at an H level and an L level section in which the one signal is at an L level, and configured to generate a modulation signal obtained by modulating a carrier with the first and second signals to generate a modulation signal that is the amplitude shift keying (ASK)-modulated carrier with the baseband signal. The present technology can be applied to a case of modulating a carrier according to a baseband signal, for example.