Based on linear least-squares constant modulus algorithm constrained least squares algorithm is an improvement, it overcomes the least squares algorithm to capture the presence of interference problems, laptop battery method using linear constraints to optimize the initial weight vector, so that in the iterative process can be quickly and accurately converge to our desired signal, and the signal power is not size. The algorithm convergence speed of the output signal SINR can be close to the ideal value, and the difference is not sensitive on the web, least-squares constant modulus algorithm performance can be achieved System Requirements |
Parallel system interconnect structure includes two kinds of methods: shared memory architecture and distributed architecture. Shared memory connection structure is all the processors are connected to a channel, the channel is generally a backplane bus (such as VXI bus), It can be used as the communication medium between the processor and the processor can also be used as data communication between shared memory. This structure of data transmission bandwidth is much greater than the communication port is connected directly, but there is bus contention problem, with the number of processors increases.
Distributed through the chain of junctions between structural processor for direct data transfer, laptop battery chain junction between the processor provides a high-speed point to point communications. This connection solely for communication between processors, but the data transfer will take other DSP chip's internal resources. Because each chip DSP internal 6 Mbit dual-port RAM, so no external data memory. DSP A and DSP B chain is also directly connected to the junction, two DSP can exchange data through a chain of junctions. DSP module program uses EPROM boot mode, two shared a 548K × 8bit DSP's FLASH DSM2150 as program memory.
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