XXX
绾ф湰绉戙�婇�氫俊鍘熺悊銆嬭瘯棰橈紙鍗凤級
棰樺彿
1
2
3
4
5
6
7
8
9
鎬?/p>
鍒?/p>
鍒嗘暟
璇存槑锛?/p>
绛旀瑕佹眰绠�鏄庢壖瑕侊紝
鍏ㄩ儴鍋氬湪鑰冭瘯棰?/p>
锛堝嵎锛?/p>
涓?/p>
銆?/p>
涓�銆?/p>
濉┖棰橈紙娌＄┖
1
鍒嗭紝鍏?/p>
34
鍒嗭級
1
锛?/p>
鏁板瓧閫氫俊绯荤粺鐨勪富瑕佺壒鐐规湁
锛?/p>
锛?/p>
鍜?/p>
銆?/p>
2
锛庣浉骞茶В璋?/p>
2ASK
淇″彿锛屽綋鍙戦�佺鍙戔�?/p>
1
鈥濈爜鏃讹紝鍦?/p>
BPF
涔嬪悗鏈嶄粠
鍒嗗竷锛屽湪
LED
涔嬪悗鏈嶄粠
鍒?/p>
甯冦�?/p>
3
锛庡浜庢寔缁椂闂翠负
t
1
鐨勪俊鍙?/p>
s
锛?/p>
t
锛?/p>
锛屽叾鍖归厤婊ゆ尝鍣?/p>
h
锛?/p>
t
锛夛紳
锛屾渶澶т俊鍣瘮鏃跺埢
t
0
涓?/p>
锛屾渶澶?/p>
淇″櫔姣?/p>
r
0max
锛?/p>
銆傚湪鏈�浣虫帴鏀舵満涓紝鍖归厤婊ゆ尝鍣?/p>
鍙唬鏇?/p>
銆?/p>
4
锛庢煇璋冮娉?/p>
s
锛?/p>
t
锛?/p>
=20
飦?/p>
飦?/p>
t
t
飦?/p>
飦?/p>
4000
cos
8
10
2
cos
8
飥?/p>
飩?/p>
,
鍒欒皟棰戞尝
淇″彿鍔熺巼涓?/p>
w
锛岃皟鍒舵寚鏁颁负
锛屾渶澶ч鍋忎负
KH
Z.
淇″彿甯﹀涓?/p>
H
Z.
5
锛庡湪鏁板瓧閫氫俊涓紝鐪煎浘鏄敤璇曢獙鏂规硶瑙傚療
鍜?/p>
瀵圭郴缁熸�ц兘鐨勫奖鍝嶏紝瑙傛祴鐪煎浘鐨勭ず娉㈠櫒鎺ュ湪
涔嬪墠銆?/p>
6
锛?/p>
鍦?/p>
鏁?/p>
瀛?/p>
閫?/p>
淇?/p>
绯?/p>
缁?/p>
涓?/p>
锛?/p>
鎺?/p>
鏀?/p>
绔?/p>
閲?/p>
鐢?/p>
鍧?/p>
琛?/p>
鐨?/p>
鐩?/p>
鐨?/p>
鏄?/p>
銆?/p>
7
锛?/p>
鑻ヤ簩杩涘埗鏁板瓧淇℃伅閫熺巼涓?/p>
f
b
bit/s
锛?/p>
鍒?/p>
BPSK
鍜?/p>
QPSK
淇″彿鍔熺巼璋卞瘑搴︿富鐡ｅ搴﹀垎鍒负
H
Z
鍜?/p>
H
Z
銆?/p>
8
锛庝负瑙ｅ喅鍦?/p>
BPSK
鐩稿共瑙ｈ皟鎭㈠杞芥尝鐩镐綅妯＄硦闂锛?/p>
鍙噰鍙?/p>
鎺柦銆?/p>
9
锛庡淇″彿
m
锛?/p>
t
锛夛紳
Acos
蠅
k
t
杩涜绠�鍗曞閲忚皟鍒剁紪鐮侊紝
鑻ヨ姹備笉鍙戠敓杩囪浇锛屽垯涓寸晫鎸箙
A
max
锛?/p>
锛屼负鎵?/p>
澶х畝鍗曞閲忚皟鍒剁殑鍔ㄦ�佽寖鍥达紝甯搁噰鐢ㄧ殑鏀硅繘鍨嬫柟妗?/p>
涓?/p>
銆?/p>
10
锛庝竴涓椂鍒嗗璺殑
PCM
绯荤粺锛?/p>
PCM
淇″彿閲囩敤
BPSK
杩涜浼犺緭锛屾暣涓郴缁熶腑鎵�闇�鐨勫悓姝ョ被鍨?/p>
鏈?/p>
銆?/p>
鍜?/p>
銆?/p>
11
锛庢煇鏁板瓧閫氫俊绯荤粺锛屼负鎻愰珮鍏跺彲闈犳�э紝鍙噰鐢ㄧ殑鎺?/p>
鏂芥湁
銆?/p>
鍜?/p>
銆?/p>
12
锛?/p>
m
搴忓垪鐨勭壒寰佸椤瑰紡
f
锛?/p>
x
锛変负
.
鍚?
鐝?
鍙?
濮?/p>
鏈?/p>
瀛?/p>
瀵?/p>
灏?/p>
绾?/p>