Visar resultat för..."Radar"

Träd växer långsamt, men lever länge. Från ett litet frö kan det ta hundratals, ibland tusentals, år innan det blir ett fullvuxet träd. Det finns många olika sorters träd. Men hur känner man igen dem? Och vad händer med oss när vi lär oss deras namn och börjar se skillnad på dem?

Vi är träd är en nyfiken och vackert illustrerad faktabok. Här blandas fascinerande och spännande fakta med berättelser om olika träd. Visste du till exempel varför asplöv darrar i vinden? Att alen släpper sina blad medan de fortfarande är gröna? Och hur det kommer sig att sälgen är så viktig om våren? Genom bokens bildberättelser får trädets olika delar liv som hem för andra arter. Insekter, fåglar, svampar och växter är alla beroende av trädets krona, stam och rötter.

I bokens avslutande del finns roliga aktiviteter för dig som vill lära dig ännu mer om träd: Gör en sälgpipa! Tappa björksav! Samla granskott! är några av rubrikerna.Vi är träd är en inspirerande och rolig bok att ta med på utflykter och promenader året om."Detta är en sprakande faktakaramell som lockar till att bekanta sig med skogens träd." Helhetsbetyg 5 av 5!BTJ-häftet, Emma Svensson Duque

Kirk Starlight är en man som alltid varit på väg, men aldrig kommit fram. En gång betydde hans låtar något och publiken såg honom. Det känns som evigheter sedan.

Nu lever han i en tillvaro av halvmesyrer: en självförvållad exil som lärare, relationer som aldrig blir mer än fragment och en identitet han långsamt tappar greppet om.

När han väl får en chans, kommer han att ta den? Eller kommer han att låta världen försvinna i backspegeln?

Med Göteborgs regnvåta gator som fond och musiken som en ständig puls i bakgrunden är Mikael Lagnebrants Radar Love en historia om att förlora sig själv, finna sig själv – och kanske, kanske våga välja ett annat liv.

Boken beskriver hur du ställer in och arbetar med radarn vid navigering och hur du med hjälp av radarn undviker kollision, både i den krävande skärgårdsmiljön och på havet.

Boken är avsedd både som läro- och handbok för den som vill kunna behärska radarn. Boken är försedd med utförliga illustrationer i färg samt ett omfattande sakregister.

Börje Wallin, välkänd författare av nautisk litteratur, beskriver utförligt och pedagogiskt hur man ställer in och arbetar med radarn vid navigering i skärgården och hur man med hjälp av radarn undviker kollisioner.

Ur innehållet:

Radarn är ett fantastiskt instrument Starta Ställ in bild Förstå radarbilden Olika presentationssätt Radarnavigering Kollidera inte i dimma - med hjälp av radar

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The Industry Standard in Radar Technology_Now Updated with All the Advances and Trends of the Past 17 Years

Turn to the Third Edition of Radar Handbook for state-of-the-art coverage of the entire field of radar technology_from fundamentals to the newest applications.

With contributions by 30 world experts, this resource examines methods for predicting radar range and explores radar subsystems such as receivers, transmitters, antennas, data processing, ECCM, and pulse compression. This radar handbook also explains the target cross section…radar echoes from ground and sea…and all radar systems, including MTI, AMTI, pulse doppler, and others. Using SI units, the Third Edition of Radar Handbook features:

Inside This Cutting-Edge Radar Guide

Become an Expert Small-Craft Radar Operator

Nothing beats radar for guiding your boat through the darkest night or the thickest fog. Radar enables you to plot a fix from just a single buoy or landmark, and it is the only navigation tool that tells you not just where you are, but who else or what else is out there with you. Today's smaller, affordable, efficient radars make more sense than ever for sailors and powerboaters.

Adopted by the American Sailing Association for their radar course and used by professional and recreational radar training schools around the world, this complete, in-depth manual shows you how to:

"This book will turn you into an expert on small-craft radar operations. It covers everything--radar choice, installation, use, and how to interface with your electronics. Very comprehensive!" -- Boat Books

"Stands out among other books on the subject . . . an excellent introduction to radar." -- Power Cruising

"Radar is an electronic tool, the operation of which takes much more interpretation than any other--too little knowledge can be just as dangerous as none. Radar for Mariners helps you understand how radar works, explains its limitations, and shows you how to get the full use of radar's functions. This book should show up on the radar screen of anyone with radar--or contemplating getting one. I can't wait to go to my boat and stop playing with my radar and start using it." -- Good Old Boat

This fully revised new edition covers the complete radar/ARPA installation and serves as the most comprehensive and up-to-date reference on equipment and techniques for radar observers using older and newer systems alike. Suitable for use as a professional reference or as a training text, the book covers all aspects of radar, ARPA and integrated bridge systems technology (including AIS, ECDIS and GNSS) and their role in shipboard operations. It is a valuable resource for larger vessels and also covers the needs of leisure and amateur sailors for whom this technology is now accessible.

Radar and ARPA Manual provides essential information for professional mariners, including those on training courses for electronic navigation systems and professional certificates internationally. Reference is made throughout to IMO (International Maritime Organization) Performance Standards, the role of radar in navigation and in collision avoidance, and to international professional and amateur marine operations qualifications.

Ground Penetrating Radar: Theory and Practice is a practical guide to using this powerful underground surveying technique. The author uses her wide experience to explain the critical factors in using GPR and how parameters, such as wavelength, attenuation and loss need to be properly considered to obtain good survey results.

The first chapter introduces the underlying physics and explains the formation of signal patterning. The next two chapters explain the significance of wavelengths for target detection, probing depths and resolution, and demonstrating the variety of signal presentation. Chapter four discusses why survey results are affected by water and air in the soil, and how this may affect depth readings.

Additional chapters discuss a variety of methods for velocity calibration and suggests where they may be useful, challenging soil conditions and potential problem environments, data processing and a suite of useful techniques, amongst other important topics.

The book gives a clear and formative guidance on understanding the critical factors in using GPR, as well as a checklist of surveying considerations.

Radar Resource Management (RRM) is vital for optimizing the performance of modern phased array radars, which are the primary sensor for aircraft, ships, and land platforms. Adaptive Radar Resource Management gives an introduction to radar resource management (RRM), presenting a clear overview of different approaches and techniques, making it very suitable for radar practitioners and researchers in industry and universities.

Coverage includes:

Micro-Doppler Characteristics of Radar Targets is a monograph on radar target's micro-Doppler effect theory and micro-Doppler feature extraction techniques. The micro-Doppler effect is presented from two aspects, including micro-Doppler effect analysis and micro-Doppler feature extraction, with micro-Doppler effects induced by different micro-motional targets in different radar systems analyzed and several methods of micro-Doppler feature extraction and three-dimensional micro-motion feature reconstruction presented.

The main contents of this book include micro-Doppler effect in narrowband radar, micro-Doppler effect in wideband radar, micro-Doppler effect in bistatic radar, micro-Doppler feature analysis and extraction, and three-dimensional micro-motion feature reconstruction, etc.

This book can be used as a reference for scientific and technical personnel engaged in radar signal processing and automatic target recognition, etc. It is especially suitable for beginners who are interested in research on micro-Doppler effect in radar.