Matched filter(1/8)
SNR을 최대로 하기 위하여 파형의 조작에 사용되는 필터를 정합필터(matched filter)라고 한다.
(정합필터를 이용한 디지털수신기)
수신기 입력 : s(t)+n(t), n(t)는 가우스성 잡음
- Matched filter 란 한마디로 말하자면 원하는 신호만 받는것.
- 어떤 필터를
3D printing
3D printing or additive manufacturing (AM) refers to any of the various processes for printing a three-dimensional object. Primarily additive processes are used, in which successive layers of material are laid down under computer control. These objects can be of almost any shape or geometry, and are produced from a 3D model or other electronic data source.
Basic principles
If the
match)와 부분일치(Partial match)
1) Exact match(완전일치검색)
검색된 도큐먼트들의 표현(representation)이 질문의 표현과 완전하게 일치된 것만 검색이 되는 경우
2) Partial match(부분일치방법)
검색된 도큐먼트들의 표현이 질문의 표현과 부분적으로 일치된 경우의 것들로 함께 검색이 되는 경우
2. 부
A filter is widely used in overall RF system. There are many species and structures in filter. A filter seems to be simple, but there are many considerations to design filter. In this paper, we design microstrip bandpass filter which has bandwidth of 500 MHz and center frequency of 2.5 GHz. Alumina is used as substrate, and chromium is used as conductor. Final results are achieved as follows. Ins
Design Summary
Bandpass filter using coupled line
Microstrip line
Implementation of L, C with Width & Length
Bandpass Fillter
IMT-2000 frequency bandwidth between 2.25 GHz and 2.75 GHz
Chebychev Filter
Sharp skirt characteristic
Design Procedures
Using two different equal-ripple
0.5 dB : High insertion loss
0.2 dB : More improved Insertion loss