A pulse diversity-based jammer cancellation processor is designed in this paper to cancel the deception electronic counter measures (ECM) signals repeated by a digital radio frequency memory (DRFM) for radar systems. In order to remove the conventional stationary hypotheses and the rigorous application conditions, an orthogonal transmission block code set is achieved in one pulse repetition int...

This paper studies a fundamental problem that arises in sparse representation and compressed sensing community: can greedy algorithms give us a stable recovery from incomplete and contaminated observations ? Using the Regularized Orthogonal Matching Pursuit (ROMP) algorithm, a modified version of Orthogonal Matching Pursuit (OMP) [1], which was recently introduced by D.Needell and R.Vershynin [...

Abstract This letter will clarify the fundamental properties of a quaternary neuron whose weights, threshold values, input and output signals are all quaternions, which is an extension of a usual real-valued neuron to quaternions. The main results of this letter are summarized as follows. A quaternary neuron has an orthogonal decision boundary. The 4-bit parity problem which cannot be solved wi...

In the context of ambient Backscatter systems, devices (tags and readers) transmit data by employing existing Radio Frequency (RF) signals. Most prior works consider perfect hardware impairment apply Orthogonal Multiple Access (OMA) technique, but this paper investigates case Outage Probability (OP) reduction situation when is imperfect, especially Non-Orthogonal (NOMA) technology applied. Cons...

In this letter, we propose a cooperative relaying system (CRS) combining orthogonal multiple access (OMA) and non-orthogonal (NOMA) for uplink transmission. the proposed system, cell-center user (CCU) amplifies forwards cell-edge (CEU) signal to base station (BS), meanwhile transmitting its own signals by NOMA. This win-win operation drives CCU CEU work together, is particularly useful when hol...

In this paper a novel Modified Simulated Annealing Algorithm (MSAA) is used as global optimization technique to find the solution of combinatorial optimization problem which is usually difficult to tackle. MSAA combines good methodologies like global minimum converging property of Simulated Annealing algorithm and fast convergence rate of Hamming scan algorithm. Orthogonal Netted Radar System (...

Orthogonal modulation is very attractive for power-limited wireless communication; thus, analysis of such signal formats in fading channels is of great theoretical and practical importance. The mathematical tractability of coherent M-ary orthogonal modulation performance over fading channels is quite restricted, especially when Ricean fading is considered. In a high-power regime, that is, one w...

In a fast fading channel, the orthogonality of the two consecutive Space Time Block Codes (STBC)-Orthogonal Frequency Division Multiplexing ( OFDM) symbols will be destroyed and the received signals cannot be perfectly separated. TR(Tone Reservation) is a technique designed to combat this problem by reserving a number of carries(tone) in the frequency domain to generate a cancellation signal in...

In Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing system using beamforming improve the receive Signal to Noise Ratio. In the transmission signals after beam forming the Peak-to-Average Power Ratio (PAPR) is a major issue in Orthogonal Frequency Division Multiplexing systems, High Peak to Average Power Ratio is complicated to design the power amplifier and also increas...

In this paper we list some new orthogonal main e ects plans for three level designs for and factors in runs and compare them with designs obtained from the existing L orthogonal array We show that these new designs have better projection properties and can provide better parameter estimates for a range of possible models Additionally we study designs in other smaller run sizes when there are in...