The term CDM stands for code division multiplexing. It is one kind of technology that works with spread spectrum communication. In this type of communication, a narrowband signal can be transmitted through division across several channels or over a larger frequency band. It does not compress the ...
known as theattenuation spectrum, while the average attenuation over the entire frequency range of a transmitted signal is defined as theattenuation coefficient. Channel attenuation is an important factor in the use of each transmission medium. Along with noise and distortion, it can influence the ...
Tactical SATCOM communications employing spread spectrum techniques have been widely investigated for the past several decades. It is typical that an advanced hybrid direct-sequence code-division multiple access (DS-CDMA) system has various remote terminals and must coexist with a conventional frequency-...
Special kind of Spread Spectrum excitation is analyzed: trains of arbitrary position and width pulses (APWP). Such signals are easy to generate and to hand... L Svilainis,V Dumbrava,A Chaziachmetovas,... - IEEE 被引量: 9发表: 2013年 EMAT phased array: a feasibility study of surface ...
production techniques. Also, his designs made it possible to choose either an explosive (ball charge) or incendiary warhead. The explosive warhead was separately ignited and could be timed by trimming the fuse length before launching. Thus, air bursts of the warheads werefeasibleat different ranges...
Spread spectrum method The direct transfer of the baseband signal is not possible. Therefore, to transmit such a signal to a greater distance, the signal strength should increase, which does not affect any parameter of the signal. Advantages of Modulation ...
Picture of a variety of birth control options The practice of birth controlor preventingpregnancyis as old as human existence. For centuries, humans have attempted to avoid pregnancy. Ancient Egyptian writings dating back to 1850 BC refer to techniques using a device placed in a woman's vagina ...
The advancement of reverse vaccinology has led to the identification of candidate genes and the screening for immune-protective antigens at the genomic level. This strategy hinged on the utilization of genetic engineering and recombinant expression techniques for the crafting of vaccine molecules27. By...
we applied single-cell transcriptomics and lineage tracing techniques with a specific aim to examine the organizational complexity and self-renewal of growing mouse incisor, contrasting it with nongrowing mouse molars, and evaluating the extent to which the mouse model reflects the growth of human tee...
Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York...