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In this paper, a broadband dual-polarized filtering dipole is proposed for base station application. Filtering response is obtained by adding simple slits on each arm of the traditional dual polarized dipole antenna. Both lower and upper stopband radiation nulls are generated. The operating bandwidth of the proposed antenna is 1.7-2.9 GHz (52%). The out-of-band suppression level is about 10 dB within 0.69-1.5 GHz and 3.3-3.8 GHz. The simulated port isolation is more than 26 dB. The proposed antenna element is suitable for potential base station applications.

the vehicle license plate location algorithm is a widely applied algorithm and is investigated repeatedly. This paper proposed a faster vehicle license plate location algorithm (HPS) that using horizontal point-segment as hybrid multi features that dedicated to License Plate detection (LP) for china's automatic vehicles that with higher accuracy. The collection of multi features that consisted of some special points and some corresponding special segments were chose by edge detection and point-segment clustering. The plate location was determined by sliding box that according to the proportion of license plate character. The result shows that the algorithm has a faster rate of detection, and has a success rate of over 98% which is significantly high.

Android malware detection has been a popularresearch topic due to non-negligible amount of malwaretargeting the Android operating system. In particular, thenaive Bayes generative classifier is a common techniquewidely adopted in many papers. However, we found thatthe naive Bayes classifier performs badly in ContagioMalware Dump dataset, which could result from theassumption that no feature dependency exists. In this paper, we propose a lightweight method for An-droid malware detection, which improves the performanceof Bayesian classification on the Contagio Malware Dumpdataset. It performs static analysis to gather malicious fea-tures from an application, and applies principal componentanalysis to reduce the dependencies among them. Withthe hidden naive Bayes model, we can infer the identityof the application. In an evaluation with 15,573 normalapplications and 3,150 malicious samples, our work detects94.5% of the malware with a false positive rate of 1.0%.The experiment also shows that our approach is feasibleon smartphones.

The maximum clique question is a paradigmatic combinatorial optimization. In order to get better solution, cuckoo search, a new meta-heuristic method was introduced. The cuckoo search was used to get better candidate solutions in this hybrid algorithm. Then, hybrid algorithm is compared with VNS and SA by standard DIMACS data sets, result shows that hybrid algorithm can get better solution in most cases.

this paper expounded the basic principle of phase interferometer system, established positioning model of one-dimensional double-base line, improved the bearing accuracy and solved the fuzzy problem. The whole circuit of the positioning system was designed, radio signal communication was implemented by RF transceiver chip, low frequency signal was used as signal frequency to modulate it to carrier, the antenna radiated electromagnetic wave to the outside, main station were used to identify whether the corresponding signal were useful signal or not, useful signal received by two slave stations went through filter, amplification and mixing to obtain two ways of IF signal which then were input into phase demodulator respectively, distinguished potential difference of two phase to get a more precise phase according to the proportion of baseline, again using the relationship between phase and azimuth to get the information of target location. According to the plan, control system was designed and a lot of related experiments were made, the experimental results showed that the system was applicable to the direction of elevation which did not exist and had certain applications and development value.