Humanitarian demining is a very urgent and important task for many countries and many techniques are proposed for its solution [1]. We have developed a bistatic GPR system using an Optical Electric Field Sensor (OEFS) as a receiver for landmine detection [2]. This system has two unique features, one is that it is a bistatic radar and the other one is to use a OEFS as a receiver. Therefore, it i...

based on the compressed sensing theory, if a signal is sparse in a suitable space, by using the optimization methods, signal could be accurately reconstructed from measurements that are significantly less than the theoretical shannon requirements. the sparse representation may exist for the signal and it is not available for the noise; this could be used to distinguish these two. on the other h...

According to the structure of the mainstream modern airborne radar warning receiver, a modeling method of radar warning receiver simulation system is presented in this paper, and it realized under the condition of SystemVue. The system consist of radar signal interception, parameter estimation and signal sorting, pulse description words can be obtained at last. The application of parameter esti...

2.1. Detection in the Presence of Noise A simplified block diagram of a radar receiver that employs an envelope detector followed by a threshold decision is shown in Fig. 2.1. The input signal to the receiver is composed of the radar echo signal and additive zero mean white Gaussian noise , with variance . The input noise is assumed to be spatially incoherent and uncorrelated with the signal. T...

In radar processing, multipath causes ghost targets to appear, deceiving the radar receiver. These ghosts are particularly bothersome since they move and behave like the normal targets (which they echo), and so the receiver has difficulty in isolating the correct target echo. These problems can be overcome by incorporating a ground map of the radar's surroundings and eliminating all echoes whic...

In recent years, several emerging technologies in modern radar system design are attracting the attention of radar researchers and practitioners alike, noteworthy among which are multiple-input multiple-output (MIMO), ultra wideband (UWB) and joint communication-radar technologies. This thesis, in particular focuses upon a cognitive approach to design these modern radars. In the existing litera...

In recent years, the research on adaptive radar waveform design has received great impetus. Some of the noteworthy works in this area include [1]—[5], where the radar transmission parameters are continuously modified in order to improve the target parameter estimation in a time-varying radar environment. Another related development is the proposal of cognitive radar, which represents an innovat...