The present description concerns a method of processing by a radio transmitter/receiver (12) of a radio signal (SR) comprising a telecommunications signal disturbed by pulses of a radar signal, the method comprising the steps of: estimating the instantaneous power of the pulses, estimating the ratio of the average power of the telecommunications signal to the instantaneous power of the radar pulses, and modifying the radio signal at the locations of the radar pulses when said ratio is smaller than a threshold.

The present description concerns a method of processing by a radio transmitter/receiver (12) of a radio signal (SR) comprising a telecommunications signal disturbed by pulses of a radar signal, the method comprising the steps of: estimating the instantaneous power of the pulses, estimating the ratio of the average power of the telecommunications signal to the instantaneous power of the radar pulses, and modifying the radio signal at the locations of the radar pulses when said ratio is smaller than a threshold.

A method (100) for characterising processing differences between analog channels, the method comprising injecting (102) three analog signals into a first analog channel and a second analog channel, digitising (104) these signals so as to obtain digital signals x.sub.k, x.sub.l and y.sub.l having N samples, estimating (106) parameters γ.sub.k,l and δ.sub.k,l from the digital signals, where γ.sub.k,l is a ratio between an amplitude of the first analog signal at the output of the first analog channel and an amplitude of the second analog signal at the output of the second analog channel, and where δ.sub.k,l is a difference between a phase shift induced by the first analog channel in the first analog signal and a phase shift induced by the second analog channel in the second analog signal, the estimation comprising the application of a least squares method in order to determine values of the parameters γ.sub.k,l and δ.sub.k,l minimising the following quantity:

[00001]$\underset{n=1}{\overset{N}{.Math.}}{\left(x_k\left(n\right)-{\gamma }_{k,l}\left(\cos \left({\delta }_{k,l}\right)x_l\left(n\right)-\sin \left({\delta }_{k,l}\right)y_l\left(n\right)\right)\right)}^2$

A method (100) for characterising processing differences between analog channels, the method comprising injecting (102) three analog signals into a first analog channel and a second analog channel, digitising (104) these signals so as to obtain digital signals x.sub.k, x.sub.l and y.sub.l having N samples, estimating (106) parameters γ.sub.k,l and δ.sub.k,l from the digital signals, where γ.sub.k,l is a ratio between an amplitude of the first analog signal at the output of the first analog channel and an amplitude of the second analog signal at the output of the second analog channel, and where δ.sub.k,l is a difference between a phase shift induced by the first analog channel in the first analog signal and a phase shift induced by the second analog channel in the second analog signal, the estimation comprising the application of a least squares method in order to determine values of the parameters γ.sub.k,l and δ.sub.k,l minimising the following quantity:

[00001]$\underset{n=1}{\overset{N}{.Math.}}{\left(x_k\left(n\right)-{\gamma }_{k,l}\left(\cos \left({\delta }_{k,l}\right)x_l\left(n\right)-\sin \left({\delta }_{k,l}\right)y_l\left(n\right)\right)\right)}^2$

An electronic device may include wireless circuitry with a transmit antenna that transmits signals and a receive antenna that receives reflected signals. The wireless circuitry may detect a range between the device and an external object based on the transmitted signals and the reflected signals. When the range exceeds a first threshold, the wireless circuitry may use the transmitted signals and received signals to record background noise. When the range is less than a second threshold value, the wireless circuitry may detect the range based on the reflected signals and the recorded background noise. This may allow the range to be accurately measured within an ultra-short range domain even when the device is placed in different device cases, placed on different surfaces, etc.

An integrated circuit includes a filter circuit and a computation circuit that applies emphasis to a data stream in a frequency domain to reduce distortion to the data stream caused by the filter circuit. The emphasis is determined based on the distortion caused by the filter circuit. A circuit design system includes logic synthesis and optimization tools that relax parameters for a first filter circuit to generate relaxed parameters, use the relaxed parameters to generate a second filter circuit that filters data, generate an emphasis vector based on distortion in the data caused by the second filter circuit, and generate a computation circuit that applies the emphasis vector to the data to reduce the distortion in the data caused by the second filter circuit.

An integrated circuit includes a filter circuit and a computation circuit that applies emphasis to a data stream in a frequency domain to reduce distortion to the data stream caused by the filter circuit. The emphasis is determined based on the distortion caused by the filter circuit. A circuit design system includes logic synthesis and optimization tools that relax parameters for a first filter circuit to generate relaxed parameters, use the relaxed parameters to generate a second filter circuit that filters data, generate an emphasis vector based on distortion in the data caused by the second filter circuit, and generate a computation circuit that applies the emphasis vector to the data to reduce the distortion in the data caused by the second filter circuit.

According to one configuration, a system includes a first wireless station in communication with a second wireless station. A phase noise predictor model such as associated with the first wireless station receives phase noise information. The phase noise information captures an estimate of: i) first phase noise associated with a first wireless station, and ii) second phase noise associated with a second wireless station. Based on the received phase noise information, the predictor produces phase noise adjustment information. The predictor applies the phase noise adjustment information to adjust (compensate) a signal of the first wireless station. Adjustment of the signal results in phase noise adjustment with respect to both the first phase noise associated with the first wireless station and the second phase noise associated with the second wireless station.

Methods and systems for nulling in wireless communication networks are disclosed herein. In one embodiment, a method performed by a first wireless communication node for initiating a nulling transmission includes: transmitting a control message to be received by a second wireless communication node, wherein the control message informs the second wireless communication node to initiate the nulling transmission toward a first station; and transmitting data to the first station during transmission of the nulling transmission from the second wireless communication node to the first station.

Methods and systems for nulling in wireless communication networks are disclosed herein. In one embodiment, a method performed by a first wireless communication node for initiating a nulling transmission includes: transmitting a control message to be received by a second wireless communication node, wherein the control message informs the second wireless communication node to initiate the nulling transmission toward a first station; and transmitting data to the first station during transmission of the nulling transmission from the second wireless communication node to the first station.