Dual DSP Research Articles

Attitude Output of Strapdown Inertial Navigation System Based on Laser Gyro

Aiming at the real-time problems of signal acquisition, attitude calculation and data exchange of strapdown inertial navigation system, the data exchange between the core device of three-axis screw instrument and three-axis accelerometer sensor inertial unit (IMU) is analyzed. The RS-232 serial interface and can bus interface are adopted, which can not meet the requirements of high-speed sampling and real-time data transmission of each sensor. A new method based on FPGA dual port RAM and dual DSP is proposed Speed data access mode, through the main control CPU clock synchronization, can effectively solve the bottleneck problem of data communication between IMU attitude data and core equipment, and realize the rapid response ability of vehicle navigation system. Experiments and simulations show that the highest frequency attitude update rate of the method can reach 2000kHz, which can effectively solve the input and output data and navigation calculation ability, and improve the maneuverability of the carrier.

A New Kind of Smart Dual DSP2812 Power Quality Monitor Based on Dedicated Users

Focus on the increasingly prominent problems of power quality of dedicated users, study on solving electric energy problems, especially for harmonic pollution, was essential. This paper to study the method of testing and calculating electric energy index, then designed hardware to monitor and analyze power quality measurement data. The hardware was developed base on dual DSP2812, which was very advanced digital signal processing chip, and the hardware utilized high precision instantaneous synchronous sampling chip MAX1324, extended RAM and FLASH, RS232 communication circuit, high capacity SD card storage circuit, etc. The dual DSP power quality smart meter was tested and applied in dedicated users and its reliability, practicability, availability and accuracy was authenticated. This smart meter also has advantages of easy to carry, low cost, high precision, easy to promote, etc. can effectively meet power quality management of dedicated users.

A wind turbine emulator based on a dual DSP processor system

In this paper the principles and structure of a wind turbine emulator (WTE) are described. The WTE is a versatile system specially designed for the purpose of developing and testing new control strategies for wind energy conversion systems. The WTE is built around a processor module, which controls a separately-excited DC motor. The core of the processor module is a dual DSP system working in a tightly-coupled architecture. The WTE provides a friendly environment to readily modify wind speed conditions, change turbine parameters and supervise system variables. Experimental results from the WTE coupled to a grid-connected induction generator are analyzed.

A Wind Turbine Emulator Based on a Dual DSP Processor System

In this paper the principles and structure of a Wind Turbine Emulator (WTE) are described. The WTE is a versatile system specially designed with the purpose of developing and testing new control strategies for Wind Energy Conversion Systems. The WTE is built around a Processor Module, which controls a separately-excited DC motor. The core of the Processor Module is a dual DSP system working in tightly-coupled architecture. The WTE provides a friendly environment to readily modify wind speed conditions, change turbine parameters and supervise system variables. Experimental results from the WTE coupled to a grid-connected induction generator are analyzed.

A dual-DSP microprocessor system for real-time digital correlation

The design of a dual TMS320C25 DSP microprocessor system with dual-port common memory and its application for real-time correlation are explained. System design details, brief explanations for design decisions and timing analysis, theory of digital correlation, a software flowchart and a description of hardware-software debugging using the XDS 320 simulator and a software simulator are presented.