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DIY Instruments for Amateur Space. Inventing Utility for Your Spacecraft Once It Achieves Orbit

What can you measure and what are your limits when orbiting in space? Learn about what physical quantities you can measure and what types of sensors you can buy or build. We cover the 5 essential design limits as well: power, bandwidth, resolution, computing and legal limitations. Explore what you can play with using your own personal satellite. There is no ultimate detector, no detector that has an infinite field of view with perfect spatial resolution taking rapid frames covering the entire spectral wavelength (plus particle events) with zero noise. We'll cover what sensors and detectors do, and how to balance the key tradeoffs required to make the best sensor for your task. Let's get some definitions out of the way: A sensor is a device for measuring a quantity. Sensor and detector are fairly synonymous. An instrument is one or more sensors. A telescope is one or more instruments coaligned, often with a focusing device.

Introduction to Communication Electronic Warfare Systems

Focusing mainly on the engineering aspects of communications electronic warfare (EW) systems, this thoroughly updated and revised edition of a popular Artech House book offers a current and complete introduction to the subject. The second edition adds a wealth of new material, including expanded treatments of two critical areas - RF noise and the effects of signal fading. Extensively supported with over 700 equations, this authoritative resource details the components, systems, and operations of electronic warfare systems dedicated to protecting and attacking military communications networks. The book offers a complete understanding of how modern direction finders for communication signals work, along with their limitations. It shows how to measure performance and define the basic operations necessary for communication EW systems. Professionals learn how to identify state-of-the-art EW technology and gain a solid understanding of basic EW processes.

The ARRL Antenna Book for Radio Communications (24th Ed.)

Welcome to the 24th edition of the ARRL Antenna Book! Since 1939's very first edition, the amateur's everexpanding affection for and association with the “skyhook” has been chronicled in these pages. That first edition's 139 pages have grown to more than 1000 and even then, there is more that could be covered. Amateurs use the widest frequency range of any civilian service and being an inventive lot, also use the widest variety of antennas. In response, the ARRL Antenna Book provides the amateur with a reference source for a balance of practical designs supplemented with theory and rationale. The inaugural Antenna Book was written by two well-known authors — George Grammer, W1DF, and Byron Goodman, W1DX (then W1JPE). They covered the basics of what amateurs needed to know as our signals spanned ever-greater distances on ever-higher frequencies: propagation, antenna fundamentals, effects of ground, transmission lines, all manner of antennas, special low-frequency and UHF antennas, as well as how to construct, aim, and turn them. Do those topics sound familiar? We have many of the same questions today. As this edition is being developed, amateurs are expanding their reach higher and lower. We've been granted our first LF allocation at 2200 meters. (That full-size dipole sure will be impressive!) A second MF allocation at 630 meters brackets the AM broadcast band with 160 meters.

Архитектура и градостроительство средней азии начала ХХ века

Архитектура и градостроительство в средней азии начала ХХ века отличились социальными экспериментами авангардными творческими поисками и заложили основы современных типологий и стилей.

Analysis and Modeling of Radio Wave Propagation

This comprehensive guide helps readers understand the theory and techniques needed to analyze and model radio wave propagation in complex environments. All of the essential topics are covered, from the fundamental concepts of radio systems, to complex propagation phenomena. These topics include diffraction, ray tracing, scattering, atmospheric ducting, ionospheric ducting, scintillation, and propagation through both urban and non-urban environments. Emphasis is placed on practical procedures, with detailed discussion of numerical and mathematical methods providing readers with the necessary skills to build their own propagation models and develop their own techniques. MATLAB functions illustrating key modeling ideas are provided online. This is an invaluable resource for anyone wanting to use propagation models to understand the performance of radio systems for navigation, radar, communications, or broadcasting.

The ARRL Antenna Book (21st ed.)

We are pleased to offer the 21st edition of The ARRL Antenna Book. Since the first edition in September 1939, each new Antenna Book has provided more and better information about the fascinating subject of radio antennas. We've sold more than a million Antenna Books over the years to amateurs and professionals alike, making it one of the most successful books in our extensive lineup of publications. Fundamentals about antennas rarely change from edition to edition, but modern application of these fundamentals can result in more highly optimized or specialized antennas. For example, many of the antennas in this new edition benefit directly from advances in sophisticated computer modeling. We usually update at least 20% of the material in a new edition, and this book is no exception.

DORIVOR 0 6SIMLIKLAR YETISHTIRISH TEXN OLOGIY ASIVA EKOLOGIYA

Biroq Dorivor o‘simliklar o‘stirish texnoiogiyasi fani shu vaqtga qadar mustaqil darslik sifatida ishlab chiqilgan emas. Buning ustiga hozirgi vaqtgacha mamlakatimizning ixtisoslashgan, fermer, o‘rmon. dehqon va boshqa mulkchilik shaklidagi xo‘jaliklarida dorivor o‘simliklarni, ularni o‘stirish texnologiyalari mukammal ishlab chiqilmaganligi sababli, ilmiy asoslanmagan holda parvarish qilinmoqda. Shu sababli ham farmatsevtika sanoatini sifatli, mo‘l, tannarxi arzon va ekologik sof xom-ashyo bilan ta’minlash katta muammo bo‘lib qolaveradi. Bu holat, albatta, dorivor o‘simliklar xom-ashyosi yetishtirish bilan shug‘ullanuvchi xo‘jaliklarni dorivor o‘simliklar o‘stirish texnologiyalarinipuxtaegallaganmutaxassislar bilan ta’minlashni taqozo qiladi.

Qishloq xo‘jaligi iqtisodiyoti

Darslikda qishloq xo‘jaligi iqtisodiyoti fanining nazariy va amaliy asoslari kadrlar tayyorlash milliy dasturi talablari asosida bayon etilgan bo‘lib, agrar iqtisodiy islohotlar natijasida qishloq xo‘jaligida xo‘jalik yuritishning erkin bozor shakllariga o‘tish va mustaqil tovar ishlab chiqaruvchilar salmog‘i o ‘sib borishi, 0 ‘zbekiston Respublikasi Prezidenti LA.Karimov asarlari va qabul qilingan qonunlar, Prezident farmonlari hamda boshqa me’yoriy hujjatlarga asoslangan.

АЛГОРИТМЫ И СТРУКТУРЫ ДАННЫХ

Учебно-методический комплекс содержит материал, включающий фундаментальные понятия алгоритма, размерности задачи, трудоемкости алгоритмов, структур данных. Комплекс представлен теоретическим разделом с контрольными вопросами и лабораторным практикумом, а также учебной программой дисциплины. В теоретическом разделе рассматриваются общие вопросы методологии теории алгоритмов и структур данных, абстрактные вычислительные машины, анализ трудоемкости алгоритмов и введение в структуры данных. Лабораторный практикум содержит материал для самостоятельного выполнения и исследования организации работы линейных списков и бинарного дерева. Адресуется студентам специальности «Прикладная информатика» гуманитарного факультета БГУ. Может быть использован в процессе изучения методики анализа алгоритмов и основ программирования студентами других специальностей.

Adabiyot 11-sinf

Ushbu darslikda o'zbek mumtoz va jahon adabiyoti namunalari keltirilgan.

Konstitutsiyaviy huquq

Mazkur «Konstitutsiyaviy huquq» fani bo'yicha darslik oliy yuridik o'quv yurtlarining bakalavr bosqichi ta'lim standartlari asosida yaratilgan. Darslikda «Konstitutsiyaviy huquq» fani predmeti doirasiga kiruvchi mavzular yoritilgan. Darslikning tuzilishi (tizimi) 0‘zbekiston Respublikasining Konstitutsiyasi tuzilishiga mos keladi. Unda 2023-yil 30-aprel kuni o'tkazilgan O'zbekiston Respublikasi referendumida umumxalq ovoz berish orqali qabul qilingan yangi tahrirdagi O'zbekiston Respublikasi Konstitutsiyasiga kiritilgan barcha o'zgartirish va qo'shimchalar e'tiborga olingan. Darslik oliy o'quv yurti talabalari uchun mo'ljallangan bo'lib, undan boshqalar ham Konstitutsiyani o'rganishda foydalanishlari mumkin.

ОСНОВЫ АЛГОРИТМИЗАЦИИ И ПРОГРАММИРОВАНИЯ

Программирование все в большей степени становится занятием лишь для профессионалов. Объявленный в середине 1980-х гг. лозунг «Программирование — вторая грамотность» остался в прошлом. В понятие «компьютерная грамотность» сегодня входит, прежде всего, навык использования многообразных средств информационных технологий. Прирешении той или иной информационной задачи сначала следует попытаться подобрать адекватное программное средство (электронные таблицы, системы управления базами данных, математические пакеты и др.), и только если эти средства не позволяют решить поставленную задачу, использовать универсальные языки программирования.

Основы алгоритмизации и программирование

Учебное пособие разработано в соответствии с программой курса «Основы алгоритмизации и программирование» и предназначено для студентов специальностей «Прикладная информатика в экономике», «Прикладная информатика в менеджменте», «Прикладная информатика в юриспруденции».

. Besh!ang‘ich matematika kursi nazariyasi

Darslik matematikaning umumiy tushunchalar. nomanfiy butun sonlar, son tushunchasini kengaytirish. elementar algebra va geometriya elementlari, miqdorlar va ularni o'lchash boTimlarini okz ichiga oiadi. BoMimlardagi mavzulaming nazariy mazmunining ma'nosini ochib berish uchun ko‘p miqdorda bar xil misol va masalaiar keltirilgan hamda o'z-o‘zini nazorat qi 1 ish savollari bilan ta’minlangan

Qishloq xo`jalik biotexnologiyasi

Darslikda gen muhandisligi asoslari, o‘simliklarning genetik muhandisligi, o‘simlikshunoslik va seleksiyada hujayra hamda to‘qimalar biotexnolo-giyasi, biotexnologiya va o‘simlikshunoslikda fitogormonlar hamda o‘simliklarning o‘sishi va rivojlanishini boshqaruvchi sun’iy regulatorlar, tuproq unum-dorligini oshirishda, o‘simliklarni himoya qilishda biotexnologiyaga oid masalalar yoritilgan. Bundan tashqari darslikda olingan bilimlami mustahkamlash uchun nazorat savollari va ba’zi tayanch iboralar izohi keltiriladi.

Principles of Digital Communication

The renowned communications theorist Robert Gallager brings his lucid writing style to the study of the fundamental system aspects of digital communication for a one-semester course for graduate students. With the clarity and insight that have characterized his teaching and earlier textbooks, he develops a simple framework and then combines this with careful proofs to help the reader understand modern systems and simplified models in an intuitive yet precise way. A strong narrative and links between theory and practice reinforce this concise, practical presentation. The book begins with data compression for arbitrary sources. Gallager then describes how to modulate the resulting binary data for transmission over wires, cables, optical fibers, and wireless channels. Analysis and intuitive interpretations are developed for channel noise models, followed by coverage of the principles of detection, coding, and decoding. The various concepts covered are brought together in a description of wireless communication, using CDMA as a case study.