Journal of Nanjing University of Science and Technology 

About: Journal of Nanjing University of Science and Technology is an academic journal. The journal publishes majorly in the area(s): Control theory & Signal. Over the lifetime, 582 publications have been published receiving 1109 citations.

Stability of Networked Control Systems with Time-delay and Data Packet Dropout

Abstract: The model and the stablity of the network control systems with time-delay and data packet dropout are studiedBased on the fixed rate of the data packet dropout,the networked control system is modeled as an asynchronous dynamical system (ADS) with rate constraints on events The sufficient condition to the exponential stability of the networked control system is derived from the conclusion of the ADSsThe simulation validates the method

Conceptual Design of Internal Combustion-linear Generator Integrated Power System

Abstract: A novel internal combustion-linear generator integrated power system is proposed.The system mainly consists of the combustion chamber of the four-stroke internal combusion engine,the linear electric generator,the reversible electric energy storage system and the electronic control unit.To reduce the energy conversion and transmission procedures and to control piston's motion with the adjustable electromagnetic force,the conceptual design is made,the basic equation is derived and the theoretical analysis is made.It is considered that the new system has the advantage of more clean and effective conversion energy and can be applied in electric hybrid vehicles.

Monocular Vision-based Relative Pose Parameters Determination for Non-cooperative Spacecrafts

Abstract: Using monocular vision system, and the knowledge of the target spacecraft, an iterative method for relative pose parameters is found during the proximity operations of non-cooperative spacecrafts from a distance between 1 and 200 meters. Unlike previous spacecraft-based computer vision techniques, the proposed method does not require specialized markers to be present on the target. Instead, a more general system is proposed, which makes use of the target' s own structure in estimating pose. To deal with the nonlinearity of the monocular vision-based relative pose parameters determination, the Levenberg-Marquardt algorithm is used. The solution is validated by using a mathematical simulation, and the simulation results show that the iterative method is effective and reliable, and the proposed algorithm is more suitable in on-board real-time computation.

Performance of Anti-noise AM Spot Jamming of Pseudo-random Code Fuzes

Abstract: The anti-noise amplitude modulation(AM) spot jamming performance of pseudo-random code phase modulation fuze,pseudo-random code phase modulation and pulse amplitude modulation(PAM) combined fuze,and pseudo-random code phase modulation and pseudo-random pulse position modulation(PPM) combined fuze is researched based on the criterion of signal to jamming ratio(SJR) gain.Their SJR and overall SJR gain are reduced according to the same receiver model,and the influence of psuedo-random code period and Doppler frequency on the overall SJR gain of the receiver is analyzed.The results show that these three pseudo-random code fuzes have strong performance of anti-noise AM jamming.The anti-noise AM jamming ability of the pseudo-random code phase modulation and PAM combined fuze and the pseudo-random code phase modulation and pseudo-random PPM combined fuze is stronger than the pseudo-random code phase modulation fuze.

Application of Analytic Hierarchy Process to Determining Entrepreneur Evaluation Index Weight

Abstract: The procedure of applying analytic hierarchy process to determining the index weight was introduced. An example of determining entrepreneur evaluation index weight was given, the process of calculation was introduced, and the weight of each entrepreneur evaluation index was obtained. The results show that analytic hierarchy process can be used to carry out the quantitative analysis of the non-quantitative thing. It can avoid subjective effect in the course of evaluation and is a scientific method to determine entrepreneur evaluation index weight.