Optimal bi-level quantization and its application to multilevel quantization

1991 ◽  
Vol 37 (1) ◽  
pp. 160-163 ◽  
Author(s):  
X. Wu
Keyword(s):  
Multilevel Quantization ◽  
Level Quantization

scholarly journals Numerical evaluation of sine-Gordon chain energy control via subdomains state feedback under quantizationand time sampling

2019 ◽  
pp. 18-28
Author(s):  
Boris Andrievsky ◽  
Yury Orlov
Keyword(s):  
State Feedback ◽  
Communication Channel ◽  
Closed Loop ◽  
Signal Transmission ◽  
Control Signal ◽  
Time Sampling ◽  
Signal Quantization ◽  
First Order ◽  
Time Control ◽  
Level Quantization

The paper is devoted to the numerical performance evaluation of the speed-gradient algorithms, recently developed in (Orlov et al., 2018; Orlov et al., 2019) for controlling the energy of the sine-Gordon spatially distributed systems with several in-domain actuators. The influence of the level quantization of the state feedback control signal (possibly coupled to the time sampling) on the steady-state energy error and the closed loop system stability is investigated in the simulation study. The following types of quantization are taken into account: sampling-in-time control signal quantization, the level quantization for control, continuous in time; control signal quantization on level jointly with time sampling; control signal transmission over the binary communication channel with time-invariant first order coder; control signal transmission over the binary communication channel with first order coder and time-based zooming; control signal transmission over the binary communication channel with adaptive first order coder. A resulting impact on the closed-loop performance in question is concluded for each type of the quantization involved.

A digital correlation spectrometer employing multiple-level quantization

1973 ◽  
Vol 61 (9) ◽  
pp. 1339-1343 ◽  
Author(s):  
F.K. Bowers ◽  
D.A. Whyte ◽  
T.L. Landecker ◽  
R.J. Klingler
Keyword(s):  
Multiple Level ◽  
Digital Correlation ◽  
Correlation Spectrometer ◽  
Level Quantization

scholarly journals A Simple Secret Key Generation by Using a Combination of Pre-Processing Method with a Multilevel Quantization

Entropy ◽  
2019 ◽  
Vol 21 (2) ◽  
pp. 192 ◽  
Author(s):  
Mike Yuliana ◽  
Wirawan ◽  
Suwadi
Keyword(s):  
Physical Layer Security ◽  
Processing Method ◽  
Communication Security ◽  
Key Generation ◽  
Secret Key ◽  
Secret Key Generation ◽  
Information Reconciliation ◽  
Security Challenges ◽  
Iot Devices ◽  
Multilevel Quantization

Limitations of the computational and energy capabilities of IoT devices provide new challenges in securing communication between devices. Physical layer security (PHYSEC) is one of the solutions that can be used to solve the communication security challenges. In this paper, we conducted an investigation on PHYSEC which utilizes channel reciprocity in generating a secret key, commonly known as secret key generation (SKG) schemes. Our research focused on the efforts to get a simple SKG scheme by eliminating the information reconciliation stage so as to reduce the high computational and communication cost. We exploited the pre-processing method by proposing a modified Kalman (MK) and performing a combination of the method with a multilevel quantization, i.e., combined multilevel quantization (CMQ). Our approach produces a simple SKG scheme for its significant increase in reciprocity so that an identical secret key between two legitimate users can be obtained without going through the information reconciliation stage.

Odor recorder for multi-component odor using two-level quantization method

2003 ◽  
Vol 89 (1-2) ◽  
pp. 120-125 ◽  
Author(s):  
Takao Yamanaka ◽  
Ryosuke Matsumoto ◽  
Takamichi Nakamoto
Keyword(s):  
Quantization Method ◽  
Level Quantization
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