Radio Communication Evaluation using Under-Sampling when the Frequency Difference between the Carrier Signal and the Local Oscillator is Near the Symbol Rate

2019 ◽  
Vol 139 (11) ◽  
pp. 545-550
Author(s):  
Shouta Kanno ◽  
Takeshi Imaike ◽  
Akihito Otani
Keyword(s):  
Local Oscillator ◽  
Frequency Difference ◽  
Radio Communication ◽  
Symbol Rate ◽  
Under Sampling ◽  
Communication Evaluation

Developing an Effective Framework for the Augmentative and Alternative Communication Evaluation Process

2014 ◽  
Vol 23 (2) ◽  
pp. 91-98 ◽  
Author(s):  
Celeste R. Helling ◽  
Jamila Minga
Keyword(s):  
Augmentative And Alternative Communication ◽  
Evaluation Process ◽  
Assessment Process ◽  
Diagnostic Tools ◽  
Alternative Communication ◽  
Complex Communication Needs ◽  
Expressive Communication ◽  
Communication Evaluation ◽  
Communication Needs

A comprehensive augmentative and alternative communication (AAC) evaluation is critical to providing a viable means of expressive communication for nonverbal people with complex communication needs. Although a number of diagnostic tools are available to assist AAC practitioners with the assessment process, there is a need to tailor the evaluation process to the specific communication needs of the AAC user. The purpose of this paper is to provide a basis for developing an effective and clinically driven framework for approaching a user-tailored AAC evaluation process.

USE OF A CO2LASER AS A LOCAL OSCILLATOR FOR A 10 MICRON HETERODYNE DETECTION

1987 ◽  
Vol 48 (C7) ◽  
pp. C7-569-C7-571
Author(s):  
A. DELAHAIGUE ◽  
D. COURTOIS ◽  
C. THIEBEAUX ◽  
H. LE CORRE
Keyword(s):  
Local Oscillator ◽  
Heterodyne Detection

The long-term instability of the new generation hydrogen masers

2020 ◽  
pp. 35-38
Author(s):  
S.I. Donchenko ◽  
I.Y. Blinov ◽  
I.B. Norets ◽  
Y.F. Smirnov ◽  
A.A. Belyaev ◽  
...  
Keyword(s):  
Time Scale ◽  
Frequency Difference ◽  
Clock Frequency ◽  
Quantum Frequency ◽  
Frequency Standards ◽  
Quantum Frequency Standards ◽  
New Generation ◽  
Atomic Time

The latest changes in the algorithm for the formation of the international atomic time scale TAI are reported in terms of estimating the weights of the clocks involved in the formation of TAI. Studies of the characteristics of the long-term instability of new-generation hydrogen masers based on processing the results of the clock frequency difference with respect to TAI are performed. It has been confirmed that at present, new-generation hydrogen masers show significantly less long-term instability in comparison with quantum frequency standards ofsimilar and other types.

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