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Manned submersibles have been widely used in various kinds of deep-sea explorations. With the fast development of science and technology, there have been vehicles on land and in air, some of which have realized the auto drive function. In this paper, taking JIAOLONG manned submersible as an example, we will explore the possibility of manned submersible's auto drive based on the introduction and analysis...
Automatically predicting age group and gender from face images acquired in unconstrained conditions is an important and challenging task in many real-world applications. Nevertheless, the conventional methods with manually-designed features on in-the-wild benchmarks are unsatisfactory because of incompetency to tackle large variations in unconstrained images. This difficulty is alleviated to some...
Military aircraft is a complex repairable system, instantaneous availability analysis of it is a difficult problem in the integrated logistics support field. The SMTN (Stochastic Maintenance Task Net) based on mission requirement and technical condition of the military aircraft is constructed, and the maintenance function distribution types of activities in the SMTN are different. The moment generating...
A power allocation algorithm for the orthogonal frequency division multiplexing (OFDM) system under the real-time price (RTP) of smart grid is considered, where RTP is related to the energy consumed by the base station. The optimization objective maximizes the economic energy efficiency (EE) utility, and the barrier method with damped Newton method is used to solve the optimization problem. Simulation...
In this paper we present a new cross-layer method for the routing problem in Wireless Mesh Networks taking into account the Quality of Service (QoS) with rate adaptation. Since different routing metrics play certain importance in the multihop routing, multiple objectives such as transmission delay, traffic load and bandwidth are incorporated to the routing metric. Meanwhile a new link-layer sensing...
In this paper, we propose a simple hardware implementation scheme of the D-STBC system. According to the theory of D-STBC, the specific implementation scheme of encoding and decoding come up. In the design, one differential encoding table is set up to replace the complex computation of the encoder; two decoding tables are set up to replace the complex computation of the decoder. Meanwhile likelihood...
A full digital intermediate frequency (IF) differential BPSK direct sequence spread spectrum receiver platform is introduced. In the receiver the FPGA chip based hardware design is adopted and digital signal processing algorithm is combined to realize signal acquisition, tracking and demodulation. A scheme of a parallel combined serial acquisition is applied, and the Tong decision algorithm is also...
In this paper, the influence of electric power system to wireless communication system is mainly introduced. The electric power system includes ultrahigh-tension power transmission lines and transformer substation. The creation source of the electromagnetism interference and the interference principle to wireless correspondence are discussed, especially to the related radio interference in electric...
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