閫氫俊鍘熺悊璇曞嵎涓�
1
銆佸鏋滅郴缁熸弧瓒崇悊鎯充綆閫氫紶杈撶壒鎬э紝鍒欓甯﹀埄鐢ㄧ巼鍙互杈惧埌锛?/p>
a
銆?/p>
1B/Hz b
銆?/p>
1bit/Hz c
銆?/p>
2B/Hz d
銆?/p>
2bit/Hz
2
銆佷竴涓潎鍊间负闆剁殑骞崇ǔ楂樻柉绐勫甫鍣０锛屽畠鐨勫寘缁滀竴缁村垎甯冩湇浠?/p>
a
銆侀珮鏂垎甯?/p>
b
銆佸潎鍖�鍒嗗竷
c
銆佺憺鍒╁垎甯?/p>
d
銆佽幈鏂垎甯?/p>
3
銆佹ā鎷熶俊鍙疯В璋冪殑
鈥?/p>
闂ㄩ檺鏁堝簲
鈥?/p>
鏈夊彲鑳藉嚭鐜板湪
_________
淇″彿鐨勮В璋冧腑锛?/p>
a
銆?/p>
DSB b
銆?/p>
AM c
銆?/p>
PM d
銆?/p>
SSB
4
銆佸彂绔彂閫佺籂閿欑爜锛屾敹绔瘧鐮佸櫒鑷姩鍙戠幇骞剁籂姝ｉ敊璇紝浼犺緭鏂瑰紡涓哄崟鍚戜紶杈擄紝杩欑宸敊鎺у埗鐨勫伐浣滄柟寮忚绉颁负锛?/p>
a
銆?/p>
FEC b
銆?/p>
ARQ c
銆?/p>
IF d
銆?/p>
HEC
5
銆佸湪
鈥?鈥?/p>
銆?/p>
鈥?鈥?/p>
绛夋鐜囧嚭鐜版儏鍐典笅锛屼互涓嬪摢绉嶇爜鑳藉鐩存帴鎻愬彇浣嶅悓姝ヤ俊鍙凤細
a
銆佸崟鏋佹�т笉褰掗浂鐮?/p>
b
銆佸弻鏋佹�у綊闆剁爜
c
銆佸崟鏋佹�у綊闆剁爜
d
銆佸弻鏋佹�т笉褰掗浂鐮?/p>
6
銆佹棤鐮侀棿涓叉壈鐨勫熀甯︾郴缁熶紶杈撳弻鏋佹�т俊鍙锋椂锛岃鐮佺巼涓庝俊鍣姛鐜囨瘮
蟻
鐨勫叧绯讳负
a
銆?/p>
b
銆?/p>
c
銆?/p>
d
銆?/p>
7
銆佸钩绋抽殢鏈鸿繃绋嬪崗鏂瑰樊鍑芥暟
C(蟿)
涓庤嚜鐩稿叧鍑芥暟
R(蟿)
鍜屽潎鍊?/p>
m
鐨勫叧绯讳负锛?/p>
a
銆?/p>
b
銆?
c
銆?
d
銆?
8
銆佷互濂堝鏂壒閫熺巼杩涜鎶芥牱寰楀埌鐨勪互涓嬫娊鏍蜂俊鍙凤紝浠呯敤鐞嗘兂浣庨�氭护娉㈠櫒涓嶅彲鑳藉皢鍘熷淇″彿鎭㈠鍑烘潵鐨勬槸銆?/p>
a
銆佽嚜鐒舵娊鏍?/p>
b
銆佹洸椤舵娊鏍?/p>
c
銆佺悊鎯虫娊鏍?/p>
d
銆佸钩椤舵娊鏍?/p>
9
銆佺敱鍙戦�佺鍙戦�佷笓闂ㄧ殑鍚屾淇℃伅锛屾帴鏀剁鎶婅繖涓笓闂ㄧ殑鍚屾淇℃伅妫�娴嬪嚭鏉ヤ綔涓哄悓姝ヤ俊鍙风殑鏂规硶锛岃绉颁负锛?/p>
a
銆佸鍚屾娉?/p>
b
銆佽嚜鍚屾娉?/p>
c
銆佷綅鍚屾娉?/p>
d
銆佺兢鍚屾娉?/p>
10
銆佽繛璐紡鎻掑叆娉曚腑鐨勭兢鍚屾淇濇姢锛屽湪缁存寔鎬佹椂閫氬父瑕佹眰锛?/p>
a
銆佸垽鍐抽棬闄愭彁楂橈紝婕忓悓姝ユ鐜囨彁楂?/p>
b
銆佸垽鍐抽棬闄愰檷浣庯紝婕忓悓姝ユ鐜囨彁楂?/p>
c
銆佸垽鍐抽棬闄愭彁楂橈紝婕忓悓姝ユ鐜囬檷浣?/p>
d
銆佸垽鍐抽棬闄愰檷浣庯紝婕忓悓姝ユ鐜囬檷浣?/p>
11
銆佽
x(t)
涓鸿皟鍒朵俊鍙凤紝璋冪浉娉㈢殑琛ㄧず寮忎负锛?
锛屽垯
PM
璋冨埗鏂瑰紡鐨勭灛鏃惰棰戠巼鍋忓樊涓猴細
a
銆?/p>
b
銆?/p>
c
銆?/p>
d
銆?/p>
12
銆佺爜闀匡綆
=7
鐨勬眽鏄庣爜锛岀洃鐫ｄ綅搴旀槸锛?/p>
a
銆?/p>
2
浣?/p>
b
銆?/p>
3
浣?/p>
c
銆?/p>
4
浣?/p>
d
銆?/p>
5
浣?/p>
13
銆佸鏋滃湪宸茬煡鍙戦�佺嫭绔嬬殑绗﹀彿涓紝绗﹀彿
鈥淓鈥?/p>
鍑虹幇鐨勬鐜囦负
0.125
锛屽垯绗﹀彿
鈥淓鈥?/p>
鎵�鍖呭惈鐨勪俊鎭噺涓猴細
a
銆?/p>
1bit b
銆?/p>
2 bit c
銆?/p>
3 bit d
銆?/p>
4 bit