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With the integration of multiaxis layered manufacturing and material removal (machining) processes, a hybrid system has more capability and flexibility to build complicated geometry with a single setup. Process planning to integrate the two different processes is a key issue. In this paper, an algorithm of adaptive slicing for a five-axis Laser Aided(More)
A Laser Metal Deposition (LMD) height controller design methodology is presented in this paper. The height controller utilizes the Particle Swarm Optimization (PSO) algorithm to estimate model parameters between layers using measured temperature and track height profiles. The process model parameters for the next layer are then predicted using Exponentially(More)
A multi-axis adaptive slicing algorithm for multi-axis layered manufacturing which can generate optimal slices to achieve deposition without support structures is presented in this paper. Different from current adaptive slicing, this technique varies not only layer thickness but also in slicing/building direction. Aware of potential problems of previous(More)
A Laser Metal Deposition (LMD) height controller design methodology is presented in this paper. The height controller utilizes the Particle Swarm Optimization (PSO) algorithm to estimate model parameters between layers using measured temperature and track height profiles. The process model parameters for the next layer are then predicted using Exponentially(More)
Suitable techniques for High-speed Downlink Packet Access (HSDPA) services, which is using in 3G and 3G beyond, are currently being considered by the Third Generation Partnership Project (3GPP). One of the systems currently under consideration is a Space-Time Coding (STC) architecture using the Vertical-Bell-labs-Layered-Space-Time (V-BLAST) system on the(More)
This paper presents a novel multiple-input-multiple-output (MIMO) code-division-multiple-access (CDMA) communication system, which utilizes a combination of mutually orthogonal complete complementary (CC) codes (CC-CDMA) for data spreading and a suitably designed multiuser detector (MUD). The proposed MIMO CC-CDMA system successfully eliminates multiple(More)
In this paper we present the performance of DSP implementation for VBLAST receiver design used in our previously proposed enhancement of a P2P radio system. The system proposed uses a cochannel dual spatial dual polarisation mode allowing the transmission of 622 Mbps STM4 signals on four subchannels. Previously we have presented results using a LMS(More)
This paper summarizes the research and development of a Multi-Axis Planning System (MAPS) for hybrid laser metal deposition processes. The project goal is to enable the current direct metal deposition systems to fully control and utilize multi-axis capability to make complex parts. MAPS allows fully automated process planning for multi-axis layered(More)