Performance Estimation of a LEON 3FT Processor Based Design for Spacecraft Applications
نویسندگان
چکیده
The content of this paper is intended to highlight the performance of the 32-bit LEON 3FT processor in terms of execution speed in comparison with the currently used 16-bit processor. Therefore, the work related to this paper is considered to be an upgrade over the previous implementation. The proposal for such an enhancement has been materialized successfully by means of a LEON 3FT processor based design on a protoboard, extensively supported by suitable simulator and debugger tools and environment. A set of selected benchmark programs have been executed on the superior processor mainly to track the execution times. The benchmark suite is selected in order to suit, support and verify the functionality of the possible list of real-time tasks in the spacecraft application. Taking advantage of this enhancement, the end user can time critical, realtime tasks efficiently. The results of this paper show a remarkable giant leap in system performance in terms of execution speed.
منابع مشابه
High-Performance Robust Three-Axis Finite-Time Attitude Control Approach Incorporating Quaternion Based Estimation Scheme to Overactuated Spacecraft
With a focus on investigations in the area of overactuated spacecraft, a new high-performance robust three-axis finite-time attitude control approach, which is organized in connection with the quaternion based estimation scheme is proposed in the present research with respect to state-of-the-art. The approach proposed here is realized based upon double closed loops to deal with the angular rate...
متن کاملUltra-Low-Energy DSP Processor Design for Many-Core Parallel Applications
Background and Objectives: Digital signal processors are widely used in energy constrained applications in which battery lifetime is a critical concern. Accordingly, designing ultra-low-energy processors is a major concern. In this work and in the first step, we propose a sub-threshold DSP processor. Methods: As our baseline architecture, we use a modified version of an existing ultra-low-power...
متن کاملDesign of Nonlinear Robust Controller and Observer for Control of a Flexible Spacecraft
Two robust nonlinear controllers along with a nonlinear observer have been developed in this study to control a 1D nonlinear flexible spacecraft. The first controller is based on dynamic inversion, while the second one is composed of dynamic inversion and µ-synthesis controllers. The extension of dynamic inversion approach to flexible spacecraft is impeded by the non-minimum phase characteristi...
متن کاملPreliminary Design of Spacecraft Attitude Control with Pulse-Width Pulse-Frequency Modulator for Rest-to-Rest Maneuvers
In this paper, the preferred region of design parameters for quasi-normalized equations of single-axis attitude control of rigid spacecraft using pulse-width pulse-frequency modulator (PWPFM) is presented for rest-to-rest maneuvers. Using the quasi-normalized equations for attitude control reduces the system parameters, that is, the moment of inertia, the filter gain, and the maximum torque of ...
متن کاملDesign and Implementation of Field Programmable Gate Array Based Baseband Processor for Passive Radio Frequency Identification Tag (TECHNICAL NOTE)
In this paper, an Ultra High Frequency (UHF) base band processor for a passive tag is presented. It proposes a Radio Frequency Identification (RFID) tag digital base band architecture which is compatible with the EPC C C2/ISO18000-6B protocol. Several design approaches such as clock gating technique, clock strobe design and clock management are used. In order to reduce the area Decimal Matrix C...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2014