Methods and systems are provided for use of tunable bandwidths. An example system may comprises a plurality of filters, with each of filters being configured for filtering signals corresponding to a particular frequency band associated with a particular stream. One or more adjustments may be determined and applied to one or more of the plurality of filters. The adjustments may comprise modifications to at least one frequency band associated with at least one of the plurality of filters. Leakage affecting the plurality of filters may be measured or estimated, and a compensation adjustment applicable to particular transmitted and/or received signals may be determined based on measured or estimated leakage. The leakage may be estimated based on analysis of digital baseband signals corresponding to transmitted and/or received signals.

According to an embodiment, there is provided a wireless communication system in which the transmission device includes division circuitry configured to divide user data into predetermined units; a distribution processing circuitry configured to distribute user data divided such that each of the plurality of pieces of user data is included in each of a plurality of frequency channels; and a transmitter to transmit the plurality of pieces of user data for each of the frequency channels, and in which the reception device includes: a receiver to receive the plurality of pieces of user data; an extraction circuitry configured to extract each of the plurality of pieces of user data for each of the predetermined units from each of the plurality of frequency channels; and reproduction circuitry configured to combine each of the plurality of pieces of user data extracted for each user and reproduces the combined user data.

According to an embodiment, there is provided a wireless communication system in which the transmission device includes division circuitry configured to divide user data into predetermined units; a distribution processing circuitry configured to distribute user data divided such that each of the plurality of pieces of user data is included in each of a plurality of frequency channels; and a transmitter to transmit the plurality of pieces of user data for each of the frequency channels, and in which the reception device includes: a receiver to receive the plurality of pieces of user data; an extraction circuitry configured to extract each of the plurality of pieces of user data for each of the predetermined units from each of the plurality of frequency channels; and reproduction circuitry configured to combine each of the plurality of pieces of user data extracted for each user and reproduces the combined user data.

A transceiver system may be configured to provide tunable bandwidths. The transceiver may comprise a signal processing component and a filtering component, which may comprise a plurality of filters. The signal processing component may determine one or more adjustments that are applicable to one or both of a first filter that is configured for filtering signals corresponding to a first frequency band associated with a first stream, and a second filter that is configured for filtering signals corresponding to a second frequency band associated with a second stream. The one or more adjustments may correspond to modifications in one or both of the first frequency band and the second frequency band. The one or more adjustments may be communicated to the filtering component, which may apply the adjustments to one or more of the plurality of filters.

A satellite configured to operate radiofrequency communications from one or more antenna systems. The satellite further comprises a device dedicated to locating RF equipments comprising: a reception antenna comprising a plurality N of radiating elements configured to receive an RF signal, analogue means for frequency multiplexing the signals received on the N radiating elements, means for transmitting the multiplexed signals to a satellite station on the ground. A complete satellite system further comprising a satellite station and computation means configured to receive the multiplexed signals, demultiplex them and implement goniometry processing operations to determine the position of the RF equipment to be located, and to the associated locating method.

A satellite configured to operate radiofrequency communications from one or more antenna systems. The satellite further comprises a device dedicated to locating RF equipments comprising: a reception antenna comprising a plurality N of radiating elements configured to receive an RF signal, analogue means for frequency multiplexing the signals received on the N radiating elements, means for transmitting the multiplexed signals to a satellite station on the ground. A complete satellite system further comprising a satellite station and computation means configured to receive the multiplexed signals, demultiplex them and implement goniometry processing operations to determine the position of the RF equipment to be located, and to the associated locating method.

A wireless communication system transmits user data from a transmission device to a reception device. The transmission device includes division circuitry configured to divide user data into predetermined units, a distribution processing circuitry configured to distribute user data divided such that each of the plurality of pieces of user data is included in each of a plurality of frequency channels, and a transmitter configured to transmit the plurality of pieces of user data for each of the frequency channels. The reception device includes: a receiver to receive the plurality of pieces of user data, an extraction circuitry configured to extract each of the plurality of pieces of user data from each of the plurality of frequency channels, and reproduction circuitry configured to combine each of the plurality of pieces of user data extracted for each user and reproduce the combined user data.

A wireless communication system transmits user data from a transmission device to a reception device. The transmission device includes division circuitry configured to divide user data into predetermined units, a distribution processing circuitry configured to distribute user data divided such that each of the plurality of pieces of user data is included in each of a plurality of frequency channels, and a transmitter configured to transmit the plurality of pieces of user data for each of the frequency channels. The reception device includes: a receiver to receive the plurality of pieces of user data, an extraction circuitry configured to extract each of the plurality of pieces of user data from each of the plurality of frequency channels, and reproduction circuitry configured to combine each of the plurality of pieces of user data extracted for each user and reproduce the combined user data.