MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications最新文献_第10页

Performance of a FH Multilevel FSK for Mobile Radio in the Presence of Nonsynchronous Users 非同步用户存在时移动无线电跳频多电平FSK的性能

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4805979

R. Agustí, G. Junyent

引用次数: 0

Effects of Mutual Coupling upon the LMS Adaptive Antenna Array Algorithm 互耦合对LMS自适应天线阵列算法的影响

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4805990

S. Alexander, J. Kauffman

引用次数: 1

A Control Architecture for a Military SSMA Satellite Communication System 军用SSMA卫星通信系统的控制体系结构

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4805903

E. Hirshfield, M. Sites

引用次数: 0

Low Life Cycle Cost EHF MILSATCOM Terminal Concepts 低生命周期成本EHF军事卫星通信终端概念

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4806018

E. J. Andrews, D. Holtzer, K. J. Gibson

{"title":"Low Life Cycle Cost EHF MILSATCOM Terminal Concepts","authors":"E. J. Andrews, D. Holtzer, K. J. Gibson","doi":"10.1109/MILCOM.1982.4806018","DOIUrl":"https://doi.org/10.1109/MILCOM.1982.4806018","url":null,"abstract":"Evolution of MILSATCOM terminals utilizing the EHF/SHF (40/20 GHz) frequency band places high demands on the terminal architecture and equipment design to provide required performance consistent with affordable life cycle costs. Factors influencing the terminal architecture and design include covert operation in the presence of a high jamming environment. These requirements are generally achievable only through the use of advanced technology concepts which are usually not consistent with low cost. The effort described in this paper was sponsored by RADC under Contract F30602-81-C-0154. It develops the interrelationship between terminal requirements, available technology and terminal architecture necessary to provide low life cycle cost terminals. An iterative process applied early in the design phase leads to the identification of high cost areas and through analysis and trade-off of technology, design and architecture, lower cost approaches are developed. Life-cycle analysis is accomplished through computer programs providing sensitivity data which is accurate and accountable for both design-to-unit-production-cost (DTUPC) and Life Cycle Cost (LCC).","PeriodicalId":179832,"journal":{"name":"MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124266753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal Codes and Filters for Hard-Limited OQPSK/DS Multiple Access Systems 硬限制OQPSK/DS多址系统的最优编码和滤波器

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4805922

A. K. Elhakeen, H. Hafez, A. Ghafar

引用次数: 2

Use of Diversity to Improve FH/MFSK Performance in Worst Case Partial Band Noise and Multitone Jamming 在部分频带噪声和多音干扰的最坏情况下，利用分集提高跳频/MFSK性能

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4805965

B. Levitt

引用次数: 27

Spectrum Occupancy of Pulsed FSK 脉冲FSK的频谱占用

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4805989

T. Bucher

{"title":"Spectrum Occupancy of Pulsed FSK","authors":"T. Bucher","doi":"10.1109/MILCOM.1982.4805989","DOIUrl":"https://doi.org/10.1109/MILCOM.1982.4805989","url":null,"abstract":"For signals used as Time Division Multiple Access and Slow Frequency Hopping A-J waveforms, it is desirable to be able to predict the spectrum occupancy of pulses containing a number of angle modulated symbols. It is shown that if the angle modulated signal is random, but stationary in the wide sense, the power or energy spectrum is the convolution of the corresponding spectra of the angle modulated wave and of the amplitude pulse. Spectrum occupancy can be obtained by integrating the resulting spectrum. Using a 9845S desk computer, spectrum occupancy has been estimated for FSK waves having peak to peak deviation ratios of 0.5 (MSK) and 0.7 (approximately optimum for limiter-discriminator). The modulating pulse may be a square wave of duration equal to from one to sixteen FSK symbols, or such a pulse passed through a Butterworth filter (with 2, 4 or 6 poles) or an ideal Gaussian filter. The filtered pulses have a one symbol rise time. It is concluded that square wave modulation should be avoided unless the duration is substantially longer than 16 bits. The simple 2-pole Butterworth filter confines the spectrum about as well as the ideal Gaussian, and much better than the square pulse. Pulsed FSK signals should be provided with a rise (and fall) time of the order of one modulation period. The amplitude variation should be continuous from zero to maximum, and probably the first derivative of the variation should also be continuous.","PeriodicalId":179832,"journal":{"name":"MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1982-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127710728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mitigation Techniques against Ionospheric Scintillation on UHF Satellite Links 超高频卫星链路上电离层闪烁的减缓技术

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4806024

M. R. Dresp, D. Leichtman

引用次数: 0

Synchronization of Frequency Hopping DPSK Signals 跳频DPSK信号的同步

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4805931

K. Woo

引用次数: 0

Impact of Advanced Material Processing Techniques on Spread Spectrum Systems Technology 先进材料加工技术对扩频系统技术的影响

MILCOM 1982 - IEEE Military Communications Conference - Progress in Spread Spectrum Communications Pub Date : 1982-10-01 DOI: 10.1109/MILCOM.1982.4805938

G. O'Clock

引用次数: 0