Eryang Zhang

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Underwater Acoustic Sensor Networks (UASNs) have attracted increasing interest in recent years due to their extensive commercial and military applications. However, the harsh underwater channel causes many challenges for the design of reliable underwater data transport protocol. In this paper, we propose an energy efficient data transport protocol based on(More)
Coherent decoys can guide the passive radar seeker (PRS) of anti-radiation missile (ARM) to a point completely outside the extremities of target. The difficulty of the final practicality of coherent jamming is the accurate phase difference control of two coherent decoys at PRS. Model of two coherent decoys jamming ARM is built in this paper, which includes(More)
Aim at improving the performance and efficiency of AODV protocol in Tactical MANETs which has large scale and fast changing topology, a novel AODV algorithm - LRM-AODV based on local route maintenance is proposed. According to the feature that there always exist many idle nodes, LRM-AODV adopts reverse route search procedure for idle nodes to produce many(More)
Coherent decoys can induce anti-radiation missile (ARM) to the area outside radiant sources compared with the noncoherent decoys technology widely used now, the choke point of final utility of coherent decoy is the accurate control of radiant sources’ phase difference. Model of two radiant sources decoying ARM is built in this paper, relationships between(More)
A simplified electromagnetic scattering model for Anti-radiation missile (ARM) is built in this paper. In this model, we suppose that the warhead, main body, wing and tail of ARM have regular shapes, and the simplified model is form of these four parts. Scattering characteristic of each part of ARM is calculated by using methods of physical optics (PO),(More)
This paper presents a suboptimum custom-tailored (SCT) model for power amplifiers (PAs). Based on the pruned Volterra series, the SCT model is developed by using a recursive optimum-term selecting (ROS) algorithm with an offline characterization process. The proposed model sacrifices accuracy in comparison with the custom-tailored (CT) model derived from(More)
Specific Emitter Identification (SEI) is to identify the emitters with various RF fingerprints, originated from the nonlinearity of the emitter power amplifiers. This paper firstly develops an improved Approximate Entropy (imApEn) algorithm, by modifying the tolerance interval of Approximate Entropy (ApEn), to extract the nonlinear complexity of the signals(More)
In this paper, we propose a new channel estimation method for IEEE802.11a and HIPERLAN/2 wireless LANs. Based on the frequency coherence of the channel for wireless LANs, the absent frequency channel responds at virtual subcarriers and DC subcarrier are reconstructed by linear interpolation firstly, then channel estimation with time domain truncation is(More)