绮惧搧
鍙紪杈戜慨鏀?/p>
涔犻鍏?/p>
1.
鍦ㄩ鍥?/p>
6.1
锛?/p>
a
锛?/p>
(b)
涓紝瀹炵嚎鍒嗗埆涓轰袱涓渶灏忕浉浣嶇郴缁熺殑寮�鐜鏁板箙棰戠壒鎬ф洸绾匡紝鍥句腑铏?/p>
绾块儴鍒嗚〃绀洪噰鐢ㄤ覆鑱旀牎姝ｅ悗绯荤粺鐨勫紑鐜鏁板箙棰戠壒鎬ф洸绾挎敼鍙樺悗鐨勯儴鍒嗭紝璇曢棶锛?/p>
1
锛変覆鑱旀牎姝ｆ湁鍝嚑绉嶅舰寮忥細
2
锛夎瘯鎸囧嚭鍥撅紙
a
锛?/p>
銆?/p>
(b)
鍒嗗埆閲囧彇浜嗕粈涔堜覆鑱旀牎姝ｆ柟娉曪紵
3
锛夊浘锛?/p>
a
锛?/p>
銆?/p>
(b)
鎵�閲囧彇鐨勬牎姝ｆ柟娉曞垎鍒敼鍠勪簡绯荤粺鐨勪粈涔堟�ц兘锛?/p>
-20dB/dec
-40dB/dec
0dB
L
(
蠅
)
-20dB/dec
-40dB/dec
-20dB/dec
-40dB/dec
-40dB/dec
-20dB/dec
L
(
蠅
)
0dB
(a)
(b)
棰樺浘
6.1
涔犻
1
鍥?/p>
绛旀锛?/p>
1)
銆佺浉浣嶈秴鍓嶆牎姝ｃ�佺浉浣嶆粸鍚庢牎姝ｃ�佺浉浣?/p>
-
瓒呭墠鏍℃
2)
銆佸浘
(a)
涓茶仈鐩镐綅婊炲悗鏍℃锛屽浘
(b)
涓茶仈鐩镐綅瓒呭墠鏍℃銆?/p>
3)
銆?/p>
鐩镐綅婊炲悗鏍℃鎻愰珮浜嗕綆棰戞鐨勫鐩婏紝
鍙噺灏戠郴缁熺殑璇樊銆?/p>
鐩镐綅瓒呭墠鏍℃鏀瑰杽浜嗙郴
缁熺殑绋冲畾鎬э紝浣垮壀鍒囬鐜囧彉澶э紝鎻愰珮绯荤粺鐨勫揩閫熸�с�?/p>
2.
鍗曚綅鍙嶉绯荤粺鐨勫紑鐜鏁板箙棰戠壒鎬ф洸绾?/p>
)
(
0
飦?/p>
L
濡傞鍥?/p>
6.2
鎵�绀猴紝閲囩敤涓茶仈鏍℃锛屾牎姝ｈ
缃殑浼犻�掑嚱鏁?/p>
)
1
100
)(
1
3
.
0
(
)
1
10
)(
1
3
(
)
(
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
s
s
s
s
s
G
c
60
40
20
0
-20
0.3
1
3
10
30
100
300
0.1
-40
-60
-40
-60
-20dB/dec
dB
L
/
)
(
飦?/p>
1
/
飥?/p>
s
飦?/p>
棰樺浘
6.2
涔犻
2
鍥?/p>