'ReceiveArrayMotionSource', 'Input port'. 'TransmitArrayOrientationAxes',radartxaxes. 'ReceiveArray',phased.ConformalArray( 'Element',phased.IsotropicAntennaElement). Radarchan=phased.ScatteringMIMOChannel( 'TransmitArray',ant. The receivers are assumed to be randomly placed in a 2 km x 2km region and equipped with isotropic antennas. įor the wireless signals, the gain and the power of the transmitter may change from frame to frame. For more details on how to generate these types of signals, please refer to the example "Spectrum Sensing with Deep Learning to Identify 5G and LTE Signals". Since 5G and LTE signals are present in the vicinity of airport radars, we define a set of signals for these wireless standards using 5G Toolbox and LTE Toolbox. Radartx = phased.Transmitter( 'PeakPower',power_ASR, 'Gain',gain_ASR) Wav = phased.RectangularWaveform( 'SampleRate',fs, 'PulseWidth',pulseWidth, 'PRF',prf, 'NumPulses',3) Īntele=design(reflectorParabolic( 'Exciter',horn),fc) Īnt=phased.ConformalArray( 'Element',antele) Prf=fs/ceil(fs/1050) % pulse repetition rate The radar operates at 2.8 GHz and uses a reflector antenna with a gain of 32.8 dB. Setup the SceneĬonsider an airport surveillance radar located at the scenario origin. The trained network is then used to identify the signals and the corresponding occupied bandwidth of these signals. This data is used to train and test a deep learning network. We first synthesize a data set that consists of radar and wireless communications signals. This example shows how to model a spectrum sensing system. This requires that future radar and wireless communication systems include spectrum sensing to detect occupied space to avoid conflicts. As a result, the spectrum of radar systems and wireless communication systems may overlap, which drives the need for spectrum sharing. These higher frequency bands are at ranges traditionally used by radar systems. Due to the increasing demands for higher speeds and greater coverage, modern wireless communication systems are moving to higher frequency bands and larger signal bandwidths.
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