How Long to Read Comparative Study of Spread Spectrum and Time Modulated Ultra-Wide-Band Communications

How Long Does it Take to Read Comparative Study of Spread Spectrum and Time Modulated Ultra-Wide-Band Communications?

It takes the average reader 1 hour and 7 minutes to read Comparative Study of Spread Spectrum and Time Modulated Ultra-Wide-Band Communications by Tan F. Wong

Assuming a reading speed of 250 words per minute. Learn more

Description

Ultra-wideband communications have recently received much attention. A number of military and commercial applications of ultra-wideband have been suggested. An ultra-wideband transmitter generates signals of very large bandwidths (in excess of gigahertzs) by transmitting nanosecond or subnanosecond pulses at baseband in some randomized fashion. As a result, an ultra-wideband system is in reality a baseband spread spectrum (SS) system with a very large spreading gain. Many of the characteristics and advantages of conventional SS communications carry over to ultra-wideband. For instance, a typical ultra- wideband system is capable of supporting multiple users, is robust against jamming and interference, is robust against multipath fading, and is suitable for applications requiring low probabilities of interception and detection (LPI/ LPD). On the other hand, the use of a very large bandwidth also imposes some new challenges, like wideband antenna design, acquisition design, and interference with other systems. The goal of this project was to provide an independent evaluation of the usefulness and effectiveness of Time-Modulated Ultra-Wideband (TM-UWB) for short- to medium-range communication in a battlefield environment. TM-UWB and SS were compared in three hypothetical application scenarios that are of interest to the Air Force: a cooperative attack weaponry system, an aerial surveillance system, and a buried facility probing system. Results showed a strong potential advantage of using TM-UWB in the buried facility probing system, for which a short-range, high-rate, low-power, wall-penetrating communication system is needed. For the other two scenarios of medium- and long- range communications, the advantage of using TM-UWB was not clear and needs to be further investigated. Ultra wideband appears to be best suited for systems with fairly short link ranges and it far outperforms its counterpart indoors. (16 tables, 37 figures, 23 refs.)

How long is Comparative Study of Spread Spectrum and Time Modulated Ultra-Wide-Band Communications?

Comparative Study of Spread Spectrum and Time Modulated Ultra-Wide-Band Communications by Tan F. Wong is 66 pages long, and a total of 16,896 words.

This makes it 22% the length of the average book. It also has 21% more words than the average book.

How Long Does it Take to Read Comparative Study of Spread Spectrum and Time Modulated Ultra-Wide-Band Communications Aloud?

The average oral reading speed is 183 words per minute. This means it takes 1 hour and 32 minutes to read Comparative Study of Spread Spectrum and Time Modulated Ultra-Wide-Band Communications aloud.

What Reading Level is Comparative Study of Spread Spectrum and Time Modulated Ultra-Wide-Band Communications?

Comparative Study of Spread Spectrum and Time Modulated Ultra-Wide-Band Communications is suitable for students ages 8 and up.

Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.

When deciding what to show young students always use your best judgement and consult a professional.

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