رادار داپلر هوابرد: کاربردها، نظریه و فلسفه

The book begins with a basic discussion of the Doppler effect and its various applications, and how Doppler radar can be used for the stabilization and navigation of aircraft. A quasi-static approximation of the Doppler spectrum is presented along with illustrations and discussions to help the reader gain an intuitive understanding of the approximation and its limitations. A summary of the mathematical concepts required for development of an exact theory is then presented using the case of a narrow beam antenna. This is followed by the development of the exact theory for the general case, which is graphically illustrated and compared with the quasi-static approximation. General conditions for which the quasi-static approximation error would be excessive – specifically as applied to laser Doppler radars and low-flying aircraft – are presented. - Data and information appearing in this book are for informational purposes only. AIAA and the author are not responsible for any injury or damage resulting from use or reliance, nor do AIAA and the author warrant that use or reliance will be free from privately owned rights..

The author's extensive work in Doppler radar theory—specifically his development of an exact theory for the spectrum of an airborne Doppler radar—is thoroughly presented in this important book. Much of the material presented has not previously appeared in print, and anyone involved in Doppler theory and applications, airborne Doppler radar, or aircraft stabilization and navigation will find this book invaluable. The book begins with a basic discussion of the Doppler effect and its various applications, and how Doppler radar can be used for the stabilization and navigation of aircraft. A quasi-static approximation of the Doppler spectrum is presented along with illustrations and discussions to help the reader gain an intuitive understanding of the approximation and its limitations. A summary of the mathematical concepts required for development of an exact theory is then presented using the case of a narrow beam antenna. This is followed by the development of the exact theory for the general case, which is graphically illustrated and compared with the quasi-static approximation. General conditions for which the quasi-static approximation error would be excessive—specifically as applied to laser Doppler radars and low-flying aircraft—are presented. Software, in the form of an executable MATLAB® program which can be used to determine the Doppler spectrum parameters for any antenna pattern and any terrain backscattering, is included.

The text develops concepts and theories in a manner that can be readily followed and is supported by graphic illustrations that assist the reader in understanding the theoretical predictions. Where appropriate, examples are presented to illustrate the theory. Final results are summarized for readers who choose not to follow the development of the theory itself.

Content: Front Matter • Preface • Table of Contents 1. Scientific View 2. Doppler Effect 3. Aircraft Doppler Stabilization and Navigation 4. Quasi-Static Approximation of the Doppler Spectrum 5. Précis of Waveform Analysis Techniques 6. Thin Antenna Pattern 7. General Antenna Pattern 8. Center Frequency and Bandwidth of the Doppler Spectrum 9. Computer Study of the Doppler Spectrum 10. Computer Program Appendices Index Discusses the Doppler effect and its various applications and how Doppler radar can be used for the stabilization and navigation of aircraft. This book presents a quasi-static approximation of the Doppler spectrum and a summary of the mathematical concepts required for development of an exact theory, using the case of a narrow beam antenna.