Method and apparatus for detecting and characterizing a pulse sequence using a finite impulse filter to determine a pulse width (PW) of pulses within the pulse sequence. The method and apparatus may also apply a histogram to the filtered pulses to determine the pulse rate interval (PRI) of pulses in the pulse sequence.

Provided are a system and method for processing a radar signal for deriving a Doppler frequency from a sampled digital input signal radiated by a frequency modulation continuous wave (FMCW) radar. The system includes a transmission module that repeatedly transmits a radar signal having a unique frequency variation and a pulse repetition interval, a variation module that varies the frequency variation or pulse repetition interval of the radar signal transmitted by the transmission module, an extraction module that, upon occurrence of interference between the radar signal having the varied frequency variation or pulse repetition interval and another radar signal, extracts an interference signal from the varied radar signal, and an adjustment module that adjusts the radar signal to reduce the extracted interference signal.

A radar detection apparatus for creating discrete zones of no alert coverage for unwanted radar sources according to the environmental conditions of the location of the radar source and surrounding areas.

Example embodiments relate to methods and systems for implementing radar electronic support measure operations. A vehicle's processing unit may receive information relating to electromagnetic energy radiating in an environment of the vehicle that is detected using a vehicle radar system. The electromagnetic energy originated from one or more external emitters, such as radar signals transmitted by other vehicles. The processing unit may determine a spectrum occupancy representation that indicates spectral regions occupied by the electromagnetic energy and subsequently adjust operation of the vehicle radar system based on the spectrum occupancy representation to reduce or mitigate interference with the external emitters in the vehicle's environment. In some examples, the vehicle radar system may be switched to a passive receive-only mode to measure the electromagnetic energy radiating in the environment from other emitters.

A vessel monitoring service obtains transponder data of a vessel operating within a navigable area. In response to obtaining the transponder data of the vessel, the vessel monitoring service evaluates the transponder data and a plurality of travel segments recorded for a plurality of vessels to identify a travel segment to which the transponder data corresponds. The vessel monitoring service updates the travel segment using the transponder data and determine whether the vessel is engaged in an unauthorized activity. If so, the vessel monitoring service provides an indication that the vessel is engaged in the unauthorized activity.

A method for processing signals of active sensor systems including processing an emitted signal to include at least one distinguishing feature, the emitted signal emitted by an active sensor system adapted to intercept a reflection of the emitted signal, and to analyze the reflection of the emitted signal for determining at least one parameter of at least one object located in a space, analyzing an intercepted portion to verify the at least one distinguishing feature in the intercepted portion, and processing the intercepted portion as the reflection of the emitted signal when the at least one distinguishing feature is verified.

A system may include a computing device including a processor. The processor may be configured to: for correlation threads having populated queues, execute at least some of the correlation threads in parallel, wherein execution of each of the at least some of the correlation threads results in at least one of: at least one new radar track or at least one updated existing radar track; and output each new radar track and each updated existing radar track.

Exemplary aspects are directed to circuitry that assesses and differentiates a set of targeted data and updates a high-level bin with a numerical value indicating the number of data elements that compared successfully with a predefined value range defined for each bin. A cumulative sum of the high-level bins may then be calculated. Following, a target threshold may be compared to the cumulative sum at each bin and then providing an indication upon discovering a cumulative sum exceeding the threshold. The targeted data may be further refined by changing (through circuitry or other intervention) the predefined range values and then reprocessing the targeted data.

The present invention relates to an amplitude goniometer comprises P receiver channels, P being greater than or equal to 2, each receiver channel being identified by an index p, each receiver channel comprising an antenna coupled to a receiver chain followed by at least two digital receiver modules each comprising an analogue-to-digital conversion module associated with a respective sampling frequency, each sampling frequency not complying with the Shannon criterion and not being a multiple of another frequency, N being the number of frequencies, N being greater than or equal to 2, each frequency being referenced by an index n, the amplitude goniometry estimator working from the amplitudes of the signals originating from at least Q adjacent receiver channels of the P receiver channels, Q being at most equal to P, the sampling frequencies being associated with the analogue-to-digital conversion modules of the Q adjacent receiver channels.

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.