1. 正弦幅度调制——DSB调制与AM调制。 2. 同步解调与包络解调；频分复用（FDM）。 3. 单边带（SSB）幅度调制。 4. 脉冲串载波调制与时分复用（TDM）。 5. 脉冲幅度调制(PAM)与脉冲编码调制(PCM)。 6.离散时间正弦幅度调制

Space Systems Laboratory Massachusetts Institute of Technology Optimization of Separated Spacecraft Interferometer Trajectories in the Absence of A Gravity-Well Optimization of Separated Spacecraft Optimization of Separated Spacecraft Interferometer Trajectories in the Interferometer Trajectories in the Absence of A Gravity Absence of A Gravity-Well Edmund M. Edmund M. Kong Prof David W. Miller David W. Miller

88.1 Introduction 88.2 Memory Hierarchies 88.3 Cache Memories 88.4 Parallel and Interleaved Memories 88.5 Virtual Memory 88.6 Research Issues

Deployment and Geometry Maintenance Deployment and Geometry Maintenance  Deployable Membranes Used for solar arrays, sunshields, decoys Being researched for apertures starting at RF and eventually going to optical

94.1 Databases Database Abstraction • Data Models • Relational Databases • Hierarchical Databases • Network Databases • Architecture of a DBMS • Data Integrity and Security • Emerging Trends 94.2 Rule-Based Expert Systems

缓释和控释给药系统（sustained-release and controlled-release drug delivery systems）是近年来发展最快的新型给药系统，但亦今为止，对缓、控释给药系 统的定义尚未统一，很多文献对缓、控释给药系统及缓、控释制剂未加以严格区 分，统称缓控释制剂

Appendix D Coordinate systems Rectangular coordinate system Coordinate variables

[1] Abramowitz, M., and Stegun, I., Handbook of Mathematical Functions, Dover Pub￾lications, New York, 1965. [2] Adair, R., Concepts in Physics, Academic Press, New York, 1969. [3] Anderson, J., and Ryon, J., Electromagnetic Radiation in Accelerated Systems, Physical Review, vol. 181, no. 5, pp. 1765–1775, May 1969

Overview Ground Systems Support the space segment Command and Control Monitor spacecraft health Track Calculate spacecraft attitude

Outline Definitions Software design process Design rules Software costing